Sizing

generator/electric.py

@@ -14,6 +14,8 @@ class MeasureOrigin:
   onset: fractions.Fraction
   role: str
   measure: dict
+  start: fractions.Fraction = fractions.Fraction()
+  end: fractions.Fraction | None = None
 
 @dataclasses.dataclass(frozen=True)
 class VoicingLink:
@@ -33,9 +35,10 @@ def link_voicings(source: list[dict], origins: list[MeasureOrigin]) -> list[Voic
   for origin in origins:
     for voice in origin.measure['voices']:
       for note in voice['notes']:
-        if '_harmony' not in note:
+        local = generator.model.fraction(note['onset'])
+        if '_harmony' not in note or local < origin.start or (origin.end is not None and local >= origin.end):
           continue
-        onset = origin.onset + generator.model.fraction(note['onset'])
+        onset = origin.onset + local
         span = bisect.bisect_right(boundaries, onset)
         if origin.role == 'melody' and note.get('_harmonize'):
           melody.setdefault(span, []).append((onset, note['_harmony'], note))