Generation

generator/accompaniment.py

@@ -3,10 +3,7 @@ from __future__ import annotations
 import dataclasses
 import fractions
 import functools
-import itertools
 
-import generator.guitar
-import generator.harmony
 import generator.model
 import generator.rhythm
 
@@ -232,26 +229,3 @@ def connect_continuations(document: dict) -> bool:
           changed = True
         previous[voice['id']] = note
   return changed
-
-def prepare_basses(document: dict) -> None:
-  previous, attack, current_bass = None, 0, None
-  for measure in document['staves'][0]['measures']:
-    if measure.get('section_label'):
-      previous, attack = None, 0
-    notes = sorted((n for v in measure['voices'] for n in v['notes'] if n.get('_guitar_profile') == 'acoustic'), key=lambda n: generator.model.fraction(n['onset']))
-    for _, group in itertools.groupby(notes, key=lambda n: generator.model.fraction(n['onset'])):
-      group = list(group)
-      chord = group[0]['_harmony']
-      root = (generator.model.NATURAL[chord['root']['letter']] + generator.model.alteration(chord['root']['alter'])) % 12
-      if not same_chord(chord, previous):
-        attack, current_bass = 0, root
-      explicit = 'bass' in chord or 'inversion' in chord
-      if any(n['_guitar_lane'] == 'bass' for n in group):
-        degrees = generator.harmony.degrees(chord)
-        current_bass = (root + generator.harmony.degree_semitones(5, degrees[5])) % 12 if not explicit and attack % 2 and 5 in degrees else root
-        attack += 1
-      if explicit:
-        current_bass = generator.guitar.chord_requirements(chord, 'acoustic')[2]
-      for note in group:
-        note['_bass_pc'] = current_bass
-      previous = chord