Describe the bug
When only the player holding the instrument is the performer, the sound can be heard only by the performer.
If both the performer and the listener are holding instruments, the sound always comes from the listener’s own instrument.
As a result, if the performer holds a trumpet and the listener holds a piano, the sound is played from the listener’s position as a piano sound, which is a bug.

To Reproduce
Perform a MIDI input performance on a multiplayer server and have other players listen to it.

Expected behavior
The performance should be heard from the performer’s correct position and with the correct instrument sound, regardless of whether the listener is holding an instrument.

Additional context
(I will attach a video clip if I have time.)