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				@@ -233,6 +233,23 @@ export const ABC_NOTE_DATA = [ 
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				 ]; 
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				 export const ABC_KEYS: { [_: string]: any } = { 
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				+	"K:Cb": { 
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				+		"K:C": { up: 1, down: -11, move: 0 }, 
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				+		"K:C#": { up: 2, down: -10, move: 1 }, 
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				+		"K:Db": { up: 2, down: -10, move: 0 }, 
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				+		"K:D": { up: 3, down: -9, move: 1 }, 
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				+		"K:Eb": { up: 4, down: -8, move: 0 }, 
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				+		"K:E": { up: 5, down: -7, move: 1 }, 
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				+		"K:F": { up: 6, down: -6, move: 0 }, 
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				+		"K:Gb": { up: 7, down: -5, move: 1 }, 
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				+		"K:F#": { up: 7, down: -5, move: 0 }, 
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				+		"K:G": { up: 8, down: -4, move: 1 }, 
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				+		"K:Ab": { up: 9, down: -3, move: 0 }, 
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				+		"K:A": { up: 10, down: -2, move: 1 }, 
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				+		"K:Bb": { up: 11, down: -1, move: 0 }, 
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				+		"K:B": { up: 0, down: 0, move: 0 }, 
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				+		"K:Cb": { up: 0, down: 0, move: 0 }, 
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				+	}, 
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				 	"K:C": { 
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				 		"K:C#": { up: 1, down: -11, move: 0 }, 
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				 		"K:Db": { up: 1, down: -11, move: 1 }, 
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