Can't change instruments mid-song

Hi Eric,

Unfortunately, as you have discovered, this is not currently possible. However, there are a few tricks you can do to achieve something similar.

The easy way is to add the key signature yourself and ignore incorrect playback for transposing instruments. Add the right notes to make the score look correct when you print it and play it yourself in rehearsals. If you want to listen in MuseScore then use the transpose command to move the notes to where the pitch is correct. With this method you can have notes which either look right when you print them, or which sound right during playback, but not both at the same time.

Another solution is to write all the different instruments on separate staves and then use appropriately placed line breaks and the hide empty staves function to make it look like the instruments are on one staff. It might help if you create a part for your instruments, and a separate part for your friend's instruments. If done correctly this will both look and sound correct.

Finally, you could write the music on separate staves to get the right playback, and then copy onto a single staff and make the others invisible to get the right look. This is guaranteed to give you something that looks and sounds correct, but it means you have to maintain two copies of music. If you make any changes to the "printing" staff then you will need to make the corresponding changes to the "playback" staves.

The easiest is probably to position the line breaks properly and put each instrument on its own stave and use "Hide Empty Staves".