Octave-transposing Percussion Instruments (esp. Glockenspiel) and Concert Pitch representation

[paulalndwhr]

Issue type

Engraving bug (incorrect score rendering)

Description with steps to reproduce

Some orchestral instruments like the Double Bass or the Glockenspiel and some other percussion instruments sound octaves higher or lower than written.
Traditionally, orchestral scores in concert pitch and transposed scores both would display the notes written in the voice - even if there is an octave offset to what actually sounds.

There is an inconsistency in how Musescore deals with this at the moment: Double Basses are rendered identical in transposed and concert pitch mode. However, the Glockenspiel is rendered two octaves higher in concert pitch mode than in transposed mode.
My believe is that the way it is done on the double passes is correct.

steps to reproduce

1. Notate music for double bass, notate music for glockenspiel
2. switch around between concert pitch and transposed view
3. observe inconsistency

Supporting files, videos and screenshots

What is the latest version of MuseScore Studio where this issue is present?

OS: macOS 13.1, Arch.: x86_64, MuseScore Studio version (64-bit): 4.4.4-243461245, revision: github-musescore-musescore-2232670

Regression

I was unable to check

Operating system

macOS 13.1

Additional context

I believe that this a regression compared to an earlier 4.x version, but I am unsure.

I have been composing in 4.3 in concert pitch mode a lot and this is the first time that I noticed the bug.

Checklist

• This report follows the guidelines for reporting bugs and issues
• I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
• I have attached all requested files and information to this report
• I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible

[zacjansheski]

The octave transposition should only be observable in the clef.

However, It doesn't do this after an instrument change, is that what happened in your score?

[paulalndwhr]

I am later in the piece changing between instruments, this bug already occurs before the switch between the instruments.

I do not know if this might be helpful, but I just thought about the fact that the savefile is a very old one, I already started working on it in MS 3.6.x.

[MarcSabatella]

Did you add the correct octave clef in concert pitch mode? Current releases do that automatically when you add the instrument, but a score started in an older version might not.

[paulalndwhr]

Am I understanding correctly that the clef is view-specific (at least for some instruments)? @MarcSabatella's suggestion fixed the problem, but I was not expecting this.

When changing i.e. a trombone part to an alto or tenor clef and then switching between concert pitch view and transposed view, my tenor clef is maintained across both views.
Regardless if the clef is placed at the very beginning or midway through the score.

[MarcSabatella]

Yes, clefs are maintained independently for concert pitch on vs off - if its a transposing instrument. For mid-score clef changes, the clef is initially added in both modes, but then you can change it one place or the other. Unfortunately, no way to only show the clef change in one view or the other. But, the most common use for this would be to have a concert pitch score and transposed parts, and you can control visibility independently from score to part. So at least in that case, you can get the desired effect: a clef change that shows in the transposed parts but not in the concert pitch score (or vice versa).