[MU4 Issue] Chord symbols do not sound correctly on transposing instruments

[MaxVGDigipen]

Describe the bug
Chord symbols on non-concert pitch instruments sound the wrong chord when concert pitch is turned off.

To Reproduce
Steps to reproduce the behavior:

1. Start a score with a transposing instrument (e.g. tenor sax)
2. Turn on concert pitch
3. Write a series of chords using the chord symbol tool
4. Write a melody that fits the chords
5. Turn off concert pitch
6. Start playback

Expected behavior
The playback sounds identical each time.

Observed behavior
The melody will play back identically. However, the chord symbols will play the chord symbols as though they are at concert pitch.

Take this snippet as an example.

Here, we have a melody played on a tenor saxophone, with concert pitch turned on. The saxophone will sound these notes at concert pitch, and a piano will sound these chords at the appropriate concert pitch as well. The D, Bb, and G at marker A will be consonant chord tones of the piano's G minor chord.

However, if we turn off concert pitch, things immediately become dissonant. In this snippet, the tenor sax will sound these notes a major 9th below what is written. So the first three notes at marker A will be the same D, Bb, and G as before. However, the piano will play a concert pitch A minor chord, rather than the previous G minor. This creates unintended dissonance and plays back differently than if concert pitch were turned on.

Platform information

• OS: Windows 10

Additional context
I've attached an example .mscz file. Switching concert pitch on and off particularly reveals the dissonant impact on more complex chords.
Dracula's_Solos.zip

[Tantacrul]

Confirmed. Chord symbols should not playback differently when the user switches on/off concert pitch.

[oMrSmith]

+1

[chile1900]

+1

[DmitryArefiev]

Fixed in #15146