Scale Patterns

2026-09-30 03:17:06 -05:00
parent 7cad6db980
commit f5f0ab5eec
31 changed files with 626 additions and 32 deletions
@@ -285,3 +285,12 @@ def validate_document(document: dict) -> None:
  for span in staves[0].get('octave_shifts', []):
    if not 0 <= fraction(span['start']) < fraction(span['end']) <= absolute or not -3 <= span['octaves'] <= 3:
      raise ValueError('invalid octave-shift span')
+  previous_end = fractions.Fraction()
+  for span in staves[0].get('scale_spans', []):
+    start, end = fraction(span['start']), fraction(span['end'])
+    if not previous_end <= start < end <= absolute or not isinstance(span.get('label'), str) or not span['label'].strip() or type(span.get('matched')) is not bool:
+      raise ValueError('invalid solo scale span')
+    if not isinstance(span.get('id'), str) or not span['id'] or span['id'] in ids:
+      raise ValueError('solo scale spans require unique IDs')
+    ids.add(span['id'])
+    previous_end = end