musescore / musescore/MuseScore
[GP] Instrument pitch transposition (C played as ...) feature is not interpreted by MU4
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@alexpavlov96 is already working on this.
Since Feb 7, 2023.
P2
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- C++
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Description
Describe the bug
- Corresponding key signature should be applied to transposed instrument (e.g. clarinet in B) visually
- Pitch transposition should be applied to the notes visually
- Real pitch (when play the instrument) shouldn't be transposed
To Reproduce
Steps to reproduce the behavior:
- Open the score in MU4 and GP
Transposition issue.gp.zip - Compare them visually and with sound
Expected behavior
- Corresponding key signature should be applied to transposed instrument (e.g. clarinet in B) visually
- Pitch transposition should be applied to the notes visually
- Real pitch (when play the instrument) shouldn't be transposed
Screenshots

Contributor guide
First steps
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- Open a pull request that references the issue number.
Assessment
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