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Non-Traditional Key Signatures

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@Danielku15 is already working on this.

Since Apr 2, 2025.

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Description

alphaTab currently only supports traditional key signatures. Formats like MusicXML also support non-traditional key signatures defining for individual steps(+alter) the key signature applied.

https://www.w3.org/2021/06/musicxml40/musicxml-reference/elements/key/
https://www.w3.org/2021/06/musicxml40/musicxml-reference/examples/key-octave-element/
https://www.w3.org/2021/06/musicxml40/musicxml-reference/examples/key-element-non-traditional/

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