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generator/solo/profiles.py

@@ -3,35 +3,31 @@ from __future__ import annotations
 
 import dataclasses
 import functools
-from fractions import Fraction as F
+import fractions
 
 import generator.fretboard
 import generator.vocabulary
 
-
 @dataclasses.dataclass(frozen=True)
 class Instrument:
   part: str = ''
   strings: tuple[int, ...] = (1, 2, 3, 4, 5, 6)
   reference: int | None = None
   melody_range: tuple[int, int] | None = None
-
   @property
   def register(self):
     tuning = [p for s, p in generator.fretboard.STANDARD_TUNING if s in self.strings]
     return min(tuning) + 1, max(tuning) + 12
-
   @functools.lru_cache(maxsize=4096)
   def permits(self, number):
-    return any(p.string_number in self.strings for p in generator.fretboard.single_positions_for_pitch(F(number)))
+    return any(p.string_number in self.strings for p in generator.fretboard.single_positions_for_pitch(fractions.Fraction(number)))
 
 UNRESTRICTED = Instrument()
 
-
 def for_part(part, analysis=None):
   if part not in ('acoustic', 'electric'):
     raise ValueError('unknown solo instrument: ' + part)
   strings = (1, 2, 3, 4, 5, 6)
   if analysis is None or not analysis.melody:
     return Instrument(part, strings)
-  return Instrument(part,strings)
+  return Instrument(part, strings)