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Use standard lilypond for standard key sigs

master
Nils 2 years ago
parent
commit
184ec69423
  1. 29
      engine/api.py

29
engine/api.py

@ -1652,8 +1652,10 @@ def insertLegatoSlur():
#Key Signatures
def insertKeySignature(root, scheme):
def insertKeySignature(root:int, scheme:list, lilypondOverride:str=None):
keysig = items.KeySignature(pitchmath.plain(root), scheme)
if lilypondOverride:
keysig.lilypondParameters["override"] = lilypondOverride
insertItem(keysig)
def commonKeySignaturesAsList():
@ -1673,7 +1675,7 @@ def commonKeySignaturesAsList():
"Hollywood",
]
def insertCommonKeySignature(root, scheme):
def insertCommonKeySignature(root:int, scheme:str):
"""example:
insertCommonKeySignature(P_C, "Major")
"""
@ -1688,13 +1690,28 @@ def insertCommonKeySignature(root, scheme):
"Hollywood": [0,0,0,0,0,-10,-10], #The "Hollywood"-Scale. Stargate, Lord of the Rings etc.
#TODO: MOAR!
}
insertKeySignature(root, schemes[scheme])
def insertCursorCommonKeySignature(scheme):
#Lilypond knows some standard key signature modes, which produce cleaner output than our default verbose note-for-note one.
lySupported = ("major", "minor", "dorian", "phrygian", "lydian", "mixolydian", "locrian")
if scheme.lower() in lySupported:
lyRootNote = pitchmath.pitch2ly[root].strip("'").strip(",").lower()
lyovrd = f"\\key {lyRootNote} \\{scheme.lower()}"
else:
lyovrd = None
insertKeySignature(root, schemes[scheme], lilypondOverride=lyovrd)
def insertCursorCommonKeySignature(scheme:str):
"""Root note is generated from the cursor pitch position and takes the previous keysig
into account."""
root = pitchmath.plain(session.data.cursor.pitchindex)
into account.
Scheme is a string as seen in commonKeySignaturesAsList()
"""
if not scheme in commonKeySignaturesAsList():
raise ValueError("Unknown key signature scheme string: " + scheme)
root = pitchmath.plain(session.data.cursor.pitchindex)
keysig = session.data.currentTrack().state.keySignature()
pitchToInsert = pitchmath.toScale(session.data.cursor.pitchindex, keysig)

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