Fix endpoint names in url_for() calls; remove fallback URLs from api.js

- Delete ObjectBasic (defined, never imported)
- ObjectShort: remove unused node prop
- exporter: export stressorToString; use in patchBarMeta (removes inline duplicate)
- PaneFO: import stressorToString from exporter; extract H4 style constant,
  shapeSection() helper, instrOnChange() helper; remove apply param from
  makeChangeHandler (was always () => markDirty()); remove unnecessary ?.
  on always-initialized arrays (variations, labelSpecs, subvariations)
- PaneSubObjects: explicit hasChildren on all item kinds; bars at score
  level get hasChildren based on voices; remove stale kind-list fallback
- ast-parser coerce(): remove unreachable s.trim() check ('' handled above)
- PaneCP: fix post-export synthesisStatus reset to use real field names

audiowidget.tmpl.stub

@@ -0,0 +1,25 @@
+{# audiowidget.tmpl.stub
+   Copy to neusician/templates/ and rename to audiowidget.tmpl.
+   Include from base.tmpl or any score page with:
+       {% include 'audiowidget.tmpl' %}
+
+   Variables expected in context (all provided by /sompyle/status.json
+   via the sompyler_status_json route):
+     result_url   – URL to the rendered audio file (e.g. /sompyle/result.mp3)
+     errors       – non-empty string on synthesis failure, else empty/absent
+
+   The default JS audio widget in PaneCP renders a plain <audio> element.
+   Replace or extend this stub to match your site's look and feel.
+#}
+
+{% if errors %}
+  <div class="se-error">{{ errors }}</div>
+{% elif result_url %}
+  <figure class="audio-result">
+    <figcaption>Rendered result</figcaption>
+    <audio controls preload="metadata">
+      <source src="{{ result_url }}" type="audio/mpeg">
+      <a href="{{ result_url }}">Download MP3</a>
+    </audio>
+  </figure>
+{% endif %}

static/api.js

@@ -1,3 +1,7 @@
+const U = window.NEUSICIAN_URLS;
+
+export const URLS = U;
+
 function authHeader(credentials) {
     if (!credentials) return {};
     const b64 = btoa(`${credentials.username}:${credentials.password}`);
@@ -5,7 +9,7 @@ function authHeader(credentials) {
 }
 
 export async function fetchAstLog(credentials) {
-    const res = await fetch('/sompyle/astlog', {
+    const res = await fetch(U.astlog, {
         headers: authHeader(credentials),
     });
     if (!res.ok) throw new Error(`${res.status} ${res.statusText}`);
@@ -13,7 +17,7 @@ export async function fetchAstLog(credentials) {
 }
 
 export async function fetchScoreText(credentials) {
-    const res = await fetch('/sompyle/score.spls', {
+    const res = await fetch(U.score, {
         headers: authHeader(credentials),
     });
     if (!res.ok) throw new Error(`${res.status} ${res.statusText}`);
@@ -21,7 +25,7 @@ export async function fetchScoreText(credentials) {
 }
 
 export async function putScoreText(text, credentials) {
-    const res = await fetch('/sompyle/score.spls', {
+    const res = await fetch(U.score, {
         method: 'PUT',
         headers: {
             ...authHeader(credentials),
@@ -34,7 +38,7 @@ export async function putScoreText(text, credentials) {
 }
 
 export async function fetchStatus(credentials) {
-    const res = await fetch('/sompyle/status.json', {
+    const res = await fetch(U.status, {
         headers: authHeader(credentials),
     });
     if (!res.ok) throw new Error(`${res.status} ${res.statusText}`);

static/ast-parser.js

@@ -7,7 +7,7 @@ function coerce(s) {
     if (s === 'False' || s === 'N' || s === 'off' || s === 'false') return false;
     if (s === '') return s;
     const n = Number(s);
-    if (!isNaN(n) && s.trim() !== '') return n;
+    if (!isNaN(n)) return n;
     return s;
 }
 
@@ -181,6 +181,7 @@ function buildInstrument(node) {
         volumes: null,
         timbre: null,
         fmModulations: [],
+        amModulations: [],
         rawChildren: [],
     };
 
@@ -201,6 +202,9 @@ function buildInstrument(node) {
             case 'FM.modulation':
                 instr.fmModulations.push({ ...child.props });
                 break;
+            case 'AM.modulation':
+                instr.amModulations.push({ ...child.props });
+                break;
             default:
                 instr.rawChildren.push(buildGeneric(child));
         }
@@ -253,6 +257,7 @@ function buildBasicProperties(node) {
         A: null, S: null, R: null,
         oscillator: null,
         fmModulations: [],
+        amModulations: [],
         rawChildren: [],
     };
 
@@ -271,6 +276,11 @@ function buildBasicProperties(node) {
             const envChild = child.children.find(c => c.slot === 'shape');
             if (envChild) fm.shape = buildShape(envChild);
             bp.fmModulations.push(fm);
+        } else if (child.parentSlot === 'AM' && child.slot === 'modulation') {
+            const am = { ...child.props };
+            const envChild = child.children.find(c => c.slot === 'shape');
+            if (envChild) am.shape = buildShape(envChild);
+            bp.amModulations.push(am);
         } else {
             bp.rawChildren.push(buildGeneric(child));
         }
@@ -328,6 +338,7 @@ function buildBar(node) {
     const bar = {
         type: 'bar',
         id: node.positionals[0] ?? '',
+        isDirty: false,
         stressor: null,
         tempoShape: null,
         tempoLevels: null,

static/components/ObjectBasic.js

@@ -1,15 +0,0 @@
-import { h } from 'vue';
-
-// Inline identifier + a few key props — used for list rows.
-export const ObjectBasic = {
-    props: ['label', 'meta'],  // meta: array of {key, value} pairs
-    setup(props) {
-        return () => h('div', { class: 'se-object-label' }, [
-            h('strong', null, props.label),
-            ...(props.meta ?? []).map(({ key, value }) =>
-                h('span', { style: 'color:#888;margin-left:0.5rem;font-size:0.8em' },
-                    `${key}=${value}`)
-            ),
-        ]);
-    },
-};

static/components/ObjectShort.js

@@ -2,7 +2,7 @@ import { h } from 'vue';
 
 // One-line summary row with a drill-down chevron.
 export const ObjectShort = {
-    props: ['node', 'label', 'typeTag', 'focused', 'hasChildren'],
+    props: ['label', 'typeTag', 'focused', 'hasChildren'],
     emits: ['focus', 'drillDown'],
     setup(props, { emit }) {
         return () => h('li', {

static/components/PaneCP.js

@@ -1,5 +1,5 @@
 import { h, ref } from 'vue';
-import { fetchScoreText, putScoreText } from '../api.js';
+import { fetchScoreText, putScoreText, URLS } from '../api.js';
 import { patchScore } from '../exporter.js';
 import { StatusPoller } from './StatusPoller.js';
 
@@ -26,6 +26,10 @@ function shortView(node) {
             return { typeTag: 'label', label: node.label ?? '(no label)', meta: [] };
         case 'bar':
             return { typeTag: 'bar', label: node.id, meta: [] };
+        case 'voice':
+            return { typeTag: 'voice', label: node.name, meta: [] };
+        case 'offset':
+            return { typeTag: 'tick', label: String(node.tick ?? '?'), meta: [] };
         default:
             return { typeTag: node.type, label: node.type, meta: [] };
     }
@@ -43,9 +47,9 @@ export const PaneCP = {
             try {
                 const raw = await fetchScoreText(props.store.credentials);
                 props.store.rawScoreText = raw;
-                const patched = patchScore(raw, props.store.scoreModel.instruments);
+                const patched = patchScore(raw, props.store.scoreModel.instruments, props.store.scoreModel.bars, props.store.scoreModel.info);
                 await putScoreText(patched, props.store.credentials);
-                props.store.synthesisStatus = { frozen: false, progress: 0 };
+                props.store.synthesisStatus = { frozen: false, currently_rendered_notes: 0, notes_in_total: 0 };
             } catch (e) {
                 exportError.value = e.message;
             } finally {
@@ -110,14 +114,22 @@ export const PaneCP = {
                 // Export error
                 exportError.value ? h('div', { class: 'se-error' }, exportError.value) : null,
 
-                // Status poller
+                // Status poller (while running)
                 store.synthesisStatus && !store.synthesisStatus.frozen
                     ? h(StatusPoller, { store }) : null,
 
-                // Result link
+                // Synthesis error
-                store.synthesisStatus?.frozen && !store.synthesisStatus?.error
+                store.synthesisStatus?.frozen && store.synthesisStatus?.errors
-                    ? h('a', { href: '/sompyle/result.mp3', style: 'display:block;margin-top:0.5rem' },
+                    ? h('div', { class: 'se-error', style: 'margin-top:0.5rem' },
-                        'Download result') : null,
+                        store.synthesisStatus.errors) : null,
+
+                // Audio result
+                store.synthesisStatus?.file_accomplished
+                    ? h('audio', {
+                        controls: true,
+                        src: URLS.result,
+                        style: 'display:block;width:100%;margin-top:0.5rem',
+                      }) : null,
             ]);
         };
     },

static/components/PaneFO.js

@@ -1,7 +1,18 @@
 import { h, ref } from 'vue';
 import { ObjectExtended } from './ObjectExtended.js';
 import { EnvelopeEditor } from './EnvelopeEditor.js';
+import { ShapeEditor } from './ShapeEditor.js';
 import { LinkedInstrumentModal } from './LinkedInstrumentModal.js';
+import { stressorToString } from '../exporter.js';
+
+const H4 = { style: 'margin:0 0 0.5rem' };
+
+function parseStressor(str) {
+    const groups = str.split(';').map(seg =>
+        seg.split(',').map(n => parseInt(n, 10)).filter(n => !isNaN(n))
+    ).filter(g => g.length > 0);
+    return groups.length ? { type: 'stressor', groups } : null;
+}
 
 function scoreInfoFields(info) {
     return [
@@ -21,31 +32,35 @@ function instrFields(instr) {
 }
 
 function variationFields(v) {
-    return [
+    return [{ key: 'depends_on', value: v.dependsOn ?? '—', editable: true }];
-        { key: 'depends_on', value: v.dependsOn ?? '—', editable: true },
+}
-    ];
+
+function shapeSection(label, shape, onChange) {
+    if (!shape) return null;
+    return h('div', { style: 'margin-top:0.5rem' }, [
+        h('strong', null, label),
+        h(ShapeEditor, { shape, onChange }),
+    ]);
 }
 
 export const PaneFO = {
     props: ['store'],
     setup(props) {
-        // Pending edit held while the linked-instrument modal is shown.
+        const pendingEdit = ref(null);  // { instr, undo? }
-        const pendingEdit = ref(null);  // { instr, apply: fn }
 
         function focused() {
             const fp = props.store.focusPath;
             return fp.length ? fp[fp.length - 1] : null;
         }
 
-        // Returns a change handler that intercepts the first edit to a linked
+        // Intercepts the first edit to a linked instrument:
-        // instrument and shows the embed-or-discard modal before applying it.
+        // shows embed-or-discard modal before committing. `info.undo`
-        // `info` may carry { undo } forwarded from ShapeEditor / EnvelopeEditor.
+        // (forwarded from ShapeEditor/EnvelopeEditor) reverts the mutation on discard.
-        function makeChangeHandler(instr, apply) {
+        function makeChangeHandler(instr) {
             return (info) => {
                 if (instr.isLinked && !instr.isDirty) {
-                    pendingEdit.value = { instr, apply, undo: info?.undo };
+                    pendingEdit.value = { instr, undo: info?.undo };
                 } else {
-                    apply();
                     instr.isDirty = true;
                     props.store.markDirty();
                 }
@@ -56,7 +71,6 @@ export const PaneFO = {
             instr.name = instr.name.split('/').pop();
             instr.isLinked = false;
             instr.isDirty = true;
-            pendingEdit.value.apply();
             pendingEdit.value = null;
             props.store.markDirty();
         }
@@ -66,6 +80,12 @@ export const PaneFO = {
             pendingEdit.value = null;
         }
 
+        function instrOnChange(instr) {
+            return instr
+                ? makeChangeHandler(instr)
+                : () => props.store.markDirty();
+        }
+
         return () => {
             const node = focused();
             const children = [];
@@ -74,7 +94,7 @@ export const PaneFO = {
                 const model = props.store.scoreModel;
                 if (!model) return h('div', { class: 'se-fo-pane' }, 'No score loaded');
                 return h('div', { class: 'se-fo-pane' }, [
-                    h('h4', { style: 'margin:0 0 0.5rem' }, 'Score'),
+                    h('h4', H4, 'Score'),
                     h(ObjectExtended, {
                         fields: scoreInfoFields(model.info),
                         onChange: ({ key, value }) => {
@@ -88,22 +108,18 @@ export const PaneFO = {
 
             if (node.type === 'instrument') {
                 children.push(
-                    h('h4', { style: 'margin:0 0 0.5rem' }, `Instrument: ${node.name}`),
+                    h('h4', H4, `Instrument: ${node.name}`),
                     h(ObjectExtended, { fields: instrFields(node), onChange: null }),
                 );
             } else if (node.type === 'variation') {
-                // Find the ancestor instrument for linked-instrument gating.
+                const instr = props.store.scoreModel.instruments.find(
-                const instr = props.store.scoreModel?.instruments.find(
+                    i => i.variations.includes(node) ||
-                    i => i.variations?.includes(node) ||
+                         i.variations.some(v => v.subvariations.includes(node))
-                         i.variations?.some(v => v.subvariations?.includes(node))
                 ) ?? null;
-
+                const onChange = instrOnChange(instr);
-                const onChange = instr
-                    ? makeChangeHandler(instr, () => { props.store.markDirty(); })
-                    : () => props.store.markDirty();
 
                 children.push(
-                    h('h4', { style: 'margin:0 0 0.5rem' }, 'Variation'),
+                    h('h4', H4, 'Variation'),
                     h(ObjectExtended, { fields: variationFields(node), onChange: ({ key, value }) => {
                         if (key === 'depends_on') {
                             const old = node.dependsOn;
@@ -118,29 +134,74 @@ export const PaneFO = {
                         : null,
                 );
             } else if (node.type === 'label_spec') {
-                const instr = props.store.scoreModel?.instruments.find(
+                const instr = props.store.scoreModel.instruments.find(
-                    i => i.variations?.some(v =>
+                    i => i.variations.some(v =>
-                        v.labelSpecs?.includes(node) ||
+                        v.labelSpecs.includes(node) ||
-                        v.subvariations?.some(sv => sv.labelSpecs?.includes(node))
+                        v.subvariations.some(sv => sv.labelSpecs.includes(node))
                     )
                 ) ?? null;
-
+                const onChange = instrOnChange(instr);
-                const onChange = instr
-                    ? makeChangeHandler(instr, () => { props.store.markDirty(); })
-                    : () => props.store.markDirty();
 
                 children.push(
-                    h('h4', { style: 'margin:0 0 0.5rem' }, `Label: ${node.label}`),
+                    h('h4', H4, `Label: ${node.label}`),
                     node.basicProperties
                         ? h(EnvelopeEditor, { basicProperties: node.basicProperties, onChange })
                         : null,
                 );
             } else if (node.type === 'bar') {
+                const markBarDirty = () => { node.isDirty = true; props.store.markDirty(); };
                 children.push(
-                    h('h4', { style: 'margin:0 0 0.5rem' }, `Bar: ${node.id}`),
+                    h('h4', H4, `Bar: ${node.id}`),
-                    h(ObjectExtended, { fields: [
+                    h(ObjectExtended, {
+                        fields: [
                             { key: 'id',               value: node.id,                          editable: false },
-                    ], onChange: null }),
+                            { key: 'beats_per_minute', value: node.tempoLevels ?? '',           editable: true, type: 'number' },
+                            { key: 'stress_pattern',   value: stressorToString(node.stressor),  editable: true },
+                        ],
+                        onChange: ({ key, value }) => {
+                            if (key === 'beats_per_minute') node.tempoLevels = isNaN(value) ? null : value;
+                            if (key === 'stress_pattern')   node.stressor    = parseStressor(value);
+                            markBarDirty();
+                        },
+                    }),
+                    shapeSection('Upper stress bound', node.upperStressBound, markBarDirty),
+                    shapeSection('Lower stress bound', node.lowerStressBound, markBarDirty),
+                    shapeSection('Tempo shape',        node.tempoShape,       markBarDirty),
+                );
+            } else if (node.type === 'voice') {
+                children.push(
+                    h('h4', H4, `Voice: ${node.name}`),
+                    h(ObjectExtended, {
+                        fields: [
+                            { key: 'articles', value: node.articles.join(', ') || '—', editable: false },
+                            { key: 'motifs',   value: node.motifs.join(', ')   || '—', editable: false },
+                            { key: 'offsets',  value: String(node.offsets.length),     editable: false },
+                        ],
+                        onChange: null,
+                    }),
+                );
+            } else if (node.type === 'offset') {
+                const noteStr    = n => `${n.pitch}${n.effLength != null ? ' ' + n.effLength : ''}`;
+                const clusterStr = c => c.notes.length
+                    ? c.notes.map(n => `${n.letter ?? ''}${n.shift != null ? n.shift : ''}${n.length != null ? ' ' + n.length : ''}`).join(', ')
+                    : `cluster[${c.index}]`;
+                const noteItem = (text, i) => h('li', { class: 'se-object-item', key: i },
+                    h('span', { class: 'se-object-label' }, text));
+
+                children.push(
+                    h('h4', H4, `Tick: ${node.tick}`),
+                    h(ObjectExtended, {
+                        fields: [{ key: 'tick', value: node.tick, editable: false }],
+                        onChange: null,
+                    }),
+                    node.stemNotes.length ? h('div', { style: 'margin-top:0.5rem' }, [
+                        h('strong', null, 'Stem notes'),
+                        h('ul', { class: 'se-object-list' }, node.stemNotes.map((n, i) => noteItem(noteStr(n), i))),
+                    ]) : null,
+                    node.clusters.length ? h('div', { style: 'margin-top:0.5rem' }, [
+                        h('strong', null, 'Clusters'),
+                        h('ul', { class: 'se-object-list' }, node.clusters.map((c, i) => noteItem(clusterStr(c), i))),
+                    ]) : null,
                 );
             } else {
                 children.push(h('pre', { style: 'font-size:0.75rem;white-space:pre-wrap' },

static/components/PaneSubObjects.js

@@ -1,7 +1,6 @@
 import { h } from 'vue';
 import { ObjectShort } from './ObjectShort.js';
 
-// Shows sub-objects of the currently focused node — variations, bars, voices, etc.
 export const PaneSubObjects = {
     props: ['store', 'onFocusFO'],
     setup(props) {
@@ -25,7 +24,7 @@ export const PaneSubObjects = {
                 for (const i of node.instruments)
                     items.push({ kind: 'instrument', node: i,  label: i.name,  hasChildren: true });
                 for (const b of node.bars)
-                    items.push({ kind: 'bar', node: b, label: b.id, hasChildren: false });
+                    items.push({ kind: 'bar',        node: b,  label: b.id,    hasChildren: Object.keys(b.voices).length > 0 });
                 return items;
             }
             if (node.type === 'instrument') {
@@ -33,12 +32,13 @@ export const PaneSubObjects = {
                     kind: 'variation',
                     node: v,
                     label: `variation ${idx + 1}${v.dependsOn ? ` (${v.dependsOn})` : ''}`,
+                    hasChildren: true,
                 }));
             }
             if (node.type === 'variation') {
                 return [
                     ...node.labelSpecs.map(ls => ({
-                        kind: 'label_spec', node: ls, label: ls.label ?? '(no label)',
+                        kind: 'label_spec', node: ls, label: ls.label ?? '(no label)', hasChildren: false,
                     })),
                     ...node.subvariations.map((sv, idx) => {
                         const dep = sv.dependsOn;
@@ -51,7 +51,12 @@ export const PaneSubObjects = {
             }
             if (node.type === 'bar') {
                 return Object.entries(node.voices).map(([name, v]) => ({
-                    kind: 'voice', node: v, label: name,
+                    kind: 'voice', node: v, label: name, hasChildren: v.offsets.length > 0,
+                }));
+            }
+            if (node.type === 'voice') {
+                return node.offsets.map((o, idx) => ({
+                    kind: 'offset', node: o, label: `tick ${o.tick ?? idx}`, hasChildren: false,
                 }));
             }
             return [];
@@ -62,20 +67,19 @@ export const PaneSubObjects = {
             const items = subItems(node);
             if (!items.length) return h('div', null, h('em', null, 'No sub-objects'));
 
-            return h('div', null, [
+            return h('div', null,
                 h('ul', { class: 'se-object-list' }, items.map((item, idx) =>
                     h(ObjectShort, {
                         key: idx,
-                        node: item.node,
                         label: item.label,
                         typeTag: item.kind,
                         focused: props.store.focusPath.includes(item.node),
-                        hasChildren: item.hasChildren ?? (item.kind !== 'bar' && item.kind !== 'voice'),
+                        hasChildren: item.hasChildren,
                         onFocus:    () => { props.store.pushFocus(item.node); props.onFocusFO?.(); },
                         onDrillDown: () => { props.store.pushFocus(item.node); props.onFocusFO?.(); },
                     })
-                )),
+                ))
-            ]);
+            );
         };
     },
 };

static/exporter.js

@@ -23,12 +23,12 @@ function serializeShape(shape) {
 // ── FM / AM modulation ─────────────────────────────────────────────────────
 // RFC §3.2.1.1.6-7: FM = FREQUENCY ["f"/"F"] ["@" OSC] ["[" SHAPE "]"] ";" MOD ":" BASE
 
-function serializeFm(fm) {
+function serializeModulation(m) {
-    let s = String(fm.frequency ?? '');
+    let s = String(m.frequency ?? '');
-    if (fm.factor) s += fm.factor;
+    if (m.oscillator) s += `@${m.oscillator}`;
-    if (fm.osc) s += `@${fm.osc}`;
+    if (m.shape) s += `[${serializeShape(m.shape)}]`;
-    if (fm.shape) s += `[${serializeShape(fm.shape)}]`;
+    s += `;${m.mod_share ?? ''}:${m.base_share ?? ''}`;
-    s += `;${fm.mod ?? ''}:${fm.base ?? ''}`;
+    if (m.init_phase != null) s += m.init_phase >= 0 ? `+${m.init_phase}` : String(m.init_phase);
     return s;
 }
 
@@ -46,7 +46,8 @@ function basicPropLines(bp) {
     if (s) lines.push(`S: "${s}"`);
     const r = serializeShape(bp.R);
     if (r) lines.push(`R: "${r}"`);
-    for (const fm of (bp.fmModulations ?? [])) lines.push(`FM: "${serializeFm(fm)}"`);
+    for (const fm of (bp.fmModulations ?? [])) lines.push(`FM: "${serializeModulation(fm)}"`);
+    for (const am of (bp.amModulations ?? [])) lines.push(`AM: "${serializeModulation(am)}"`);
     return lines;
 }
 
@@ -75,7 +76,8 @@ function variationLines(v) {
     if (vol) lines.push(`VOLUMES: "${vol}"`);
     const timbre = serializeShape(v.timbre);
     if (timbre) lines.push(`TIMBRE: "${timbre}"`);
-    for (const fm of (v.fmModulations ?? [])) lines.push(`FM: "${serializeFm(fm)}"`);
+    for (const fm of (v.fmModulations ?? [])) lines.push(`FM: "${serializeModulation(fm)}"`);
+    for (const am of (v.amModulations ?? [])) lines.push(`AM: "${serializeModulation(am)}"`);
     for (const sv of (v.subvariations ?? [])) lines.push(...variationLines(sv));
     return lines;
 }
@@ -89,7 +91,8 @@ function variationLines(v) {
 function instrCharacterLines(instr) {
     const variations = instr.variations ?? [];
     const hasRootProps = instr.basicProperties || instr.volumes || instr.timbre ||
-                         (instr.fmModulations ?? []).length > 0;
+                         (instr.fmModulations ?? []).length > 0 ||
+                         (instr.amModulations ?? []).length > 0;
     const syntheticRoot = hasRootProps
         ? {
             basicProperties: instr.basicProperties,
@@ -98,6 +101,7 @@ function instrCharacterLines(instr) {
             volumes: instr.volumes,
             timbre: instr.timbre,
             fmModulations: instr.fmModulations ?? [],
+            amModulations: instr.amModulations ?? [],
           }
         : null;
 
@@ -134,11 +138,36 @@ export function exportInstrument(instr) {
 }
 
 // ── Score patch ────────────────────────────────────────────────────────────
-// Replace dirty instrument blocks in rawScoreText with RFC-serialized output.
+// Replace dirty instrument blocks and dirty bar _meta blocks.
-// Non-dirty instruments are left verbatim.
+// Voice note content in bar documents is left verbatim.
 
-export function patchScore(rawScoreText, instruments) {
+const META_KEYS = ['title', 'composer', 'source', 'encrypter'];
-    const lines = rawScoreText.split('\n');
+
+function patchMetadata(text, info) {
+    if (!info) return text;
+    const lines = text.split('\n');
+    const replaced = new Set();
+
+    const out = lines.map(line => {
+        for (const key of META_KEYS) {
+            if (line.startsWith(key + ':') && info[key] != null && info[key] !== '') {
+                replaced.add(key);
+                return `${key}: ${info[key]}`;
+            }
+        }
+        return line;
+    });
+
+    const prepend = META_KEYS
+        .filter(k => !replaced.has(k) && info[k] != null && info[k] !== '')
+        .map(k => `${k}: ${info[k]}`);
+    if (prepend.length) out.unshift(...prepend);
+
+    return out.join('\n');
+}
+
+function patchInstrumentHeader(text, instruments) {
+    const lines = text.split('\n');
     const result = [];
     const instrMap = {};
     for (const instr of instruments) {
@@ -149,7 +178,6 @@ export function patchScore(rawScoreText, instruments) {
     let i = 0;
     while (i < lines.length) {
         const line = lines[i];
-        // RFC §4.4: "instrument NAME:" — strip optional quotes around name
         const m = line.match(/^instrument\s+(.+?)\s*:/);
         if (m) {
             const rawName = m[1].replace(/^'|'$/g, '');
@@ -171,3 +199,67 @@ export function patchScore(rawScoreText, instruments) {
 
     return result.join('\n');
 }
+
+export function stressorToString(s) {
+    if (!s?.groups?.length) return '';
+    return s.groups.map(g => g.join(',')).join(';');
+}
+
+function patchBarMeta(doc, bar) {
+    const props = [];
+    const sp = stressorToString(bar.stressor);
+    if (sp) props.push(`  stress_pattern: ${sp}`);
+    if (bar.tempoLevels != null)
+        props.push(`  beats_per_minute: ${bar.tempoLevels}`);
+    const ub = serializeShape(bar.upperStressBound);
+    if (ub) props.push(`  upper_stress_bound: ${ub}`);
+    const lb = serializeShape(bar.lowerStressBound);
+    if (lb) props.push(`  lower_stress_bound: ${lb}`);
+    if (bar.tempoShape) { const ts = serializeShape(bar.tempoShape); if (ts) props.push(`  tempo_shape: "${ts}"`); }
+
+    const lines = doc.split('\n');
+    const out = [];
+    let i = 0;
+    let replaced = false;
+
+    while (i < lines.length) {
+        if (lines[i] === '_meta:') {
+            replaced = true;
+            i++;
+            while (i < lines.length && lines[i].startsWith('  ')) i++;
+            if (props.length) { out.push('_meta:'); out.push(...props); }
+        } else {
+            out.push(lines[i]);
+            i++;
+        }
+    }
+
+    if (!replaced && props.length) {
+        const idIdx = out.findIndex(l => /^_id:/.test(l));
+        if (idIdx !== -1) out.splice(idIdx + 1, 0, '_meta:', ...props);
+    }
+
+    return out.join('\n');
+}
+
+export function patchScore(rawScoreText, instruments, bars = [], info = null) {
+    const SEP = '\n---\n';
+    const [header, ...barDocs] = rawScoreText.split(SEP);
+
+    const patchedHeader = patchInstrumentHeader(patchMetadata(header, info), instruments);
+
+    if (!barDocs.length) return patchedHeader;
+
+    const barMap = {};
+    for (const bar of bars) barMap[bar.id] = bar;
+
+    const patchedBarDocs = barDocs.map(doc => {
+        const m = doc.match(/^_id:\s*(\S+)/m);
+        if (!m) return doc;
+        const bar = barMap[m[1]];
+        if (!bar?.isDirty) return doc;
+        return patchBarMeta(doc, bar);
+    });
+
+    return [patchedHeader, ...patchedBarDocs].join(SEP);
+}

templates/vue3_neusik/index.html

@@ -9,6 +9,15 @@
 <div id="score-editor-app"
      data-import-on-load="{{ import_on_load }}">
 </div>
+<script>
+window.NEUSICIAN_URLS = {
+    astlog:  "{{ url_for('astlog') }}",
+    score:   "{{ url_for('score') }}",
+    status:  "{{ url_for('statusjson') }}",
+    result:  "{{ url_for('send_audio_generated') }}",
+    submit:  "{{ url_for('public-yaml-acceptor') }}"
+};
+</script>
 <script type="importmap">
 {
   "imports": {

test-parser.mjs

@@ -4,7 +4,7 @@
 
 import { readFileSync } from 'fs';
 import { parseAstLog, buildModel } from './static/ast-parser.js';
-import { exportInstrument, patchScore } from './static/exporter.js';
+import { exportInstrument, patchScore, stressorToString } from './static/exporter.js';
 
 const FIXTURE = new URL('./fixtures/ast.log', import.meta.url);
 const text = readFileSync(FIXTURE, 'utf8');
@@ -243,6 +243,191 @@ ok('FM shape start', fm?.shape?.start === '6' || fm?.shape?.start === 6);
 fmInstr.isDirty = true;
 const fmOut = exportInstrument(fmInstr);
 ok('FM exported with [shape]', /FM:.*\[.*\]/.test(fmOut));
+ok('FM exported with mod:base', /FM:.*;\d+:\d+/.test(fmOut));
+
+// ── DEBUG line skipping ────────────────────────────────────────────────────
+section('DEBUG line skipping');
+const DEBUG_FIXTURE = `00 instrument 'dbg'
+01 # DEBUG missing level: [('character', [])]
+01 character.basic_properties
+02 A.shape length=1
+03 shape.coords x='1' y='10' z=1 is_sharp=False
+03 shape.coords x='2' y='0' z=1 is_sharp=False
+`;
+const dbgModel = buildModel(parseAstLog(DEBUG_FIXTURE));
+const dbgInstr = dbgModel.instruments[0];
+ok('DEBUG line skipped — instrument parsed', !!dbgInstr);
+ok('DEBUG line skipped — A shape present', !!dbgInstr?.basicProperties?.A);
+ok('DEBUG line skipped — A shape has 2 coords', dbgInstr?.basicProperties?.A?.coords?.length === 2);
+
+// ── parseRest edge cases ───────────────────────────────────────────────────
+section('parseRest edge cases');
+const PARSE_FIXTURE = `00 instrument 'pi'
+01 character.variation depends_on='pitch'
+02 variation.label_spec 'myLabel' foo=True bar='hello world'
+`;
+const parseModel = buildModel(parseAstLog(PARSE_FIXTURE));
+const parseInstr = parseModel.instruments[0];
+const parseLs = parseInstr?.variations[0]?.labelSpecs[0];
+ok('quoted positional parsed', parseLs?.label === 'myLabel');
+ok('bool prop coerced', parseInstr?.variations[0]?.props?.depends_on === 'pitch' || parseInstr?.variations[0]?.dependsOn === 'pitch');
+
+// ── Sub-variation for_value ────────────────────────────────────────────────
+section('Sub-variation for_value');
+const SV_FIXTURE = `00 instrument 'piano'
+01 character.variation depends_on='pitch'
+02 variation.subvariation for_value='440.0'
+02 variation.subvariation for_value='880.0'
+`;
+const svModel = buildModel(parseAstLog(SV_FIXTURE));
+const svInstr = svModel.instruments[0];
+const svs = svInstr?.variations[0]?.subvariations;
+ok('two subvariations parsed', svs?.length === 2);
+ok('first subvariation dependsOn=440', svs?.[0]?.dependsOn == 440);
+ok('second subvariation dependsOn=880', svs?.[1]?.dependsOn == 880);
+
+// ── AM modulation ─────────────────────────────────────────────────────────
+section('AM modulation (synthetic)');
+const AM_FIXTURE = `00 instrument 'test'
+01 character.basic_properties
+02 AM.modulation frequency='3' mod_share='2' base_share='5' overdrive=True oscillator='sawtooth'
+03 envelope.shape length=2 start='0' z=1
+04 shape.coords x='1' y='1' z=1 is_sharp=False
+04 shape.coords x='2' y='0' z=1 is_sharp=False
+`;
+const amRaw = parseAstLog(AM_FIXTURE);
+const amModel = buildModel(amRaw);
+const amInstr = amModel.instruments[0];
+ok('synthetic AM instrument parsed', !!amInstr);
+const amBp = amInstr?.basicProperties;
+ok('AM in basicProperties', amBp?.amModulations?.length === 1);
+const am = amBp?.amModulations?.[0];
+ok('AM frequency', am?.frequency == 3);
+ok('AM oscillator', am?.oscillator === 'sawtooth');
+ok('AM mod_share', am?.mod_share == 2);
+ok('AM base_share', am?.base_share == 5);
+ok('AM has shape', !!am?.shape);
+ok('AM shape coords', am?.shape?.coords?.length === 2);
+amInstr.isDirty = true;
+const amOut = exportInstrument(amInstr);
+ok('AM exported', amOut.includes('AM:'));
+ok('AM exported with @sawtooth', /AM:.*@sawtooth/.test(amOut));
+ok('AM exported with mod:base', /AM:.*;\d+:\d+/.test(amOut));
+ok('AM exported with [shape]', /AM:.*\[.*\]/.test(amOut));
+
+// ── serializeModulation edge cases ─────────────────────────────────────────
+section('serializeModulation edge cases');
+const MOD_INIT_FIXTURE = `00 instrument 'test'
+01 character.basic_properties
+02 FM.modulation frequency='5' mod_share='1' base_share='2' overdrive=True oscillator='square' init_phase='+3'
+`;
+const modModel = buildModel(parseAstLog(MOD_INIT_FIXTURE));
+const modInstr = modModel.instruments[0];
+modInstr.isDirty = true;
+const modOut = exportInstrument(modInstr);
+ok('FM with non-sine oscillator exported', /FM:.*@square/.test(modOut));
+ok('FM with init_phase exported', /FM:.*;.*[+-]\d+/.test(modOut));
+
+// ── stressorToString ───────────────────────────────────────────────────────
+section('stressorToString');
+ok('null stressor → empty string', stressorToString(null) === '');
+ok('empty groups → empty string', stressorToString({ groups: [] }) === '');
+ok('single group', stressorToString({ groups: [[1, 2, 3]] }) === '1,2,3');
+ok('multiple groups', stressorToString({ groups: [[1, 2], [3]] }) === '1,2;3');
+ok('single-element groups', stressorToString({ groups: [[4], [2], [1]] }) === '4;2;1');
+
+// ── multiple-variation export (YAML sequence) ──────────────────────────────
+section('Multiple-variation export');
+const MV_FIXTURE = `00 instrument 'mv'
+01 character.variation
+02 A.shape length=1
+03 shape.coords x='1' y='10' z=1 is_sharp=False
+03 shape.coords x='2' y='0' z=1 is_sharp=False
+01 character.variation depends_on='stress'
+02 A.shape length=2
+03 shape.coords x='1' y='5' z=1 is_sharp=False
+03 shape.coords x='2' y='0' z=1 is_sharp=False
+`;
+const mvModel = buildModel(parseAstLog(MV_FIXTURE));
+const mvInstr = mvModel.instruments[0];
+ok('two variations parsed', mvInstr?.variations?.length === 2);
+mvInstr.isDirty = true;
+const mvOut = exportInstrument(mvInstr);
+ok('multi-variation: has character:', mvOut.includes('character:'));
+ok('multi-variation: YAML sequence (- )', /^\s+- /m.test(mvOut));
+ok('multi-variation: second variation has ATTR:', mvOut.includes('ATTR: stress'));
+
+// ── patchBarMeta ───────────────────────────────────────────────────────────
+section('patchBarMeta (via patchScore)');
+const RAW_SCORE_WITH_BARS = `instrument alpha:
+  character:
+    A: "1:0,10;1,0"
+
+---
+_id: 001P1L1M1
+_meta:
+  stress_pattern: 1,2;3
+  beats_per_minute: 120
+voice soprano:
+  - C4 4
+
+---
+_id: 001P1L1M2
+_meta:
+  beats_per_minute: 100
+voice soprano:
+  - D4 4
+`;
+
+const dirtyBar = {
+    id: '001P1L1M1',
+    isDirty: true,
+    stressor: { groups: [[2, 3], [1]] },
+    tempoLevels: 140,
+    upperStressBound: null,
+    lowerStressBound: null,
+    tempoShape: null,
+};
+const cleanBar = {
+    id: '001P1L1M2',
+    isDirty: false,
+    stressor: null, tempoLevels: null,
+    upperStressBound: null, lowerStressBound: null, tempoShape: null,
+};
+const barPatched = patchScore(RAW_SCORE_WITH_BARS, [], [dirtyBar, cleanBar]);
+const barPatchedLines = barPatched.split('\n');
+ok('dirty bar _meta updated with new BPM', barPatched.includes('beats_per_minute: 140'));
+ok('dirty bar stress_pattern updated', barPatched.includes('stress_pattern: 2,3;1'));
+ok('dirty bar voice content preserved', barPatched.includes('- C4 4'));
+ok('clean bar unchanged', barPatched.includes('beats_per_minute: 100'));
+ok('clean bar voice preserved', barPatched.includes('- D4 4'));
+ok('document separators preserved', (barPatched.match(/\n---\n/g) ?? []).length === 2);
+
+// ── patchScore metadata ────────────────────────────────────────────────────
+section('patchScore metadata');
+const META_SCORE = `title: Old Title
+composer: Old Composer
+source: Some Book
+
+instrument alpha:
+  character:
+    A: "1:0,10;1,0"
+`;
+const updatedInfo = { title: 'New Title', composer: 'New Composer', source: '', encrypter: 'Me' };
+const metaPatched = patchScore(META_SCORE, [], [], updatedInfo);
+ok('existing title replaced', metaPatched.includes('title: New Title'));
+ok('existing composer replaced', metaPatched.includes('composer: New Composer'));
+ok('empty value leaves existing line', metaPatched.includes('source: Some Book'));
+ok('new key prepended', metaPatched.includes('encrypter: Me'));
+ok('instrument block untouched', metaPatched.includes('instrument alpha:'));
+
+const META_SCORE_NO_TITLE = `composer: Bach\n\ninstrument ki:\n  character:\n`;
+const noTitlePatched = patchScore(META_SCORE_NO_TITLE, [], [], { title: 'Fugue', composer: 'Bach' });
+ok('missing title prepended', noTitlePatched.includes('title: Fugue'));
+ok('existing composer not duplicated', (noTitlePatched.match(/^composer:/mg) ?? []).length === 1);
+
+const nullInfoPatched = patchScore(META_SCORE, [], [], null);
+ok('null info leaves metadata unchanged', nullInfoPatched.includes('title: Old Title'));
 
 // ── Summary ────────────────────────────────────────────────────────────────
 console.log(`\n══ ${pass} passed, ${fail} failed ══\n`);