Comp

generator/solo/drafts.py

@@ -215,7 +215,7 @@ def construct(plan, reference, relationship, template, anchors, variant, choices
     operation = relationship if index == 0 else 'repeat' if index == 1 and variant == 0 else 'answer' if remaining <= period else 'extend' if variant == 1 and index == 1 else 'recall'
     activity = next((p for p in plan.passages if p.start <= cursor < p.end), None)
     rate = F(len(pattern), 1) / period
-    unit = F(2) if activity and activity.activity < F(3, 4) else F(1, 2) if activity and activity.activity > rate + F(1, 4) and index else F(1)
+    unit = F(1)  # Rhythmic development is musical intent, never a density repair.
     local = pattern
     length = period
     if index and operation == 'extend':
@@ -369,6 +369,9 @@ def contract_valid(draft, notes):
   for feature in draft.features:
     if generator.solo.references.feature_error(feature, local_sounding(notes)):
       return False, f'{feature.id}: selected identifying relationship changed'
+  for first, repeated in draft.correspondence:
+    if first not in by_id or repeated not in by_id:
+      return False, 'lead statement/return correspondence was lost'
   return True, ''
 
 def relationship_features(draft, notes):
@@ -382,7 +385,7 @@ def relationship_features(draft, notes):
     actual = tuple((b.pitch.number() > a.pitch.number()) - (b.pitch.number() < a.pitch.number()) for a, b in zip(group, group[1:]))
     direction.extend(a != b for a, b in zip(actual, transform.directions))
     reference = draft.reference_motif if transform.operation in ('statement', 'contrast') else draft.home
-    if reference and transform.operation not in ('close', 'fragment', 'broaden_ending'):
+    if reference and not draft.lead_identity and transform.operation not in ('close', 'fragment', 'broaden_ending'):
       development.append(generator.solo.references.relationship(group, reference))
   joins = []
   for time in draft.joins: