Scale Patterns

2026-09-30 03:17:06 -05:00
parent 7cad6db980
commit f5f0ab5eec
31 changed files with 626 additions and 32 deletions
@@ -0,0 +1,32 @@
+from __future__ import annotations
+
+import generator.harmony
+import generator.model
+import generator.scales.library
+import generator.scales.report
+import generator.scales.selection
+import generator.scales.timeline
+
+def annotate(document: dict, solos: list[generator.scales.timeline.Solo], library: generator.scales.library.Library, source: str) -> str:
+  staff = document['staves'][0]
+  timeline = generator.scales.timeline.read(staff)
+  spans, reports = [], []
+  for solo in solos:
+    choices = generator.scales.selection.select(timeline, solo, library)
+    previous = None
+    for choice in choices:
+      if choice.span.chord is None:
+        previous = None
+        continue
+      label = choice.scale.label() if choice.scale else 'No exact scale match'
+      if previous is not None and previous['label'] == label and generator.model.fraction(previous['end']) == choice.span.start:
+        previous['end'] = generator.model.rational(choice.span.end)
+      else:
+        previous = {'id': f'scale-{len(spans) + 1}', 'start': generator.model.rational(choice.span.start), 'end': generator.model.rational(choice.span.end), 'label': label, 'matched': choice.scale is not None}
+        spans.append(previous)
+      if choice.scale is None:
+        print(f'{source}, {staff["name"]}, source measure {choice.span.source_measure}, beat {choice.span.beat}: {choice.reason} Chord: {generator.harmony.symbol(choice.span.chord)}', flush=True)
+    reports.append(generator.scales.report.passage(staff['arrangement_part_type'], solo, choices, library))
+  if spans:
+    staff['scale_spans'] = spans
+  return '\n'.join(reports)