69 lines
1.4 KiB
Python
69 lines
1.4 KiB
Python
from enum import Enum
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from smnp.error.note import NoteException
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class NotePitch(Enum):
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C = 0
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CIS = 1
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D = 2
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DIS = 3
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E = 4
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F = 5
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FIS = 6
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G = 7
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GIS = 8
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A = 9
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AIS = 10
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H = 11
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def toFrequency(self):
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return {
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NotePitch.C: 16.35,
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NotePitch.CIS: 17.32,
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NotePitch.D: 18.35,
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NotePitch.DIS: 19.45,
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NotePitch.E: 20.60,
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NotePitch.F: 21.83,
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NotePitch.FIS: 23.12,
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NotePitch.G: 24.50,
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NotePitch.GIS: 25.96,
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NotePitch.A: 27.50,
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NotePitch.AIS: 29.17,
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NotePitch.H: 30.87
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}[self]
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def __str__(self):
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return self.name
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def __repr__(self):
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return self.__str__()
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@staticmethod
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def toPitch(string):
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try:
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return stringToPitch[string.lower()]
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except KeyError as e:
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raise NoteException(f"Note '{string}' does not exist")
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stringToPitch = {
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'c': NotePitch.C,
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'c#': NotePitch.CIS,
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'db': NotePitch.CIS,
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'd': NotePitch.D,
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'd#': NotePitch.DIS,
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'eb': NotePitch.DIS,
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'e': NotePitch.E,
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'fb': NotePitch.E,
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'e#': NotePitch.F,
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'f': NotePitch.F,
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'f#': NotePitch.FIS,
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'gb': NotePitch.FIS,
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'g': NotePitch.G,
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'g#': NotePitch.GIS,
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'ab': NotePitch.GIS,
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'a': NotePitch.A,
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'a#': NotePitch.AIS,
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'b': NotePitch.AIS,
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'h': NotePitch.H
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} |