My roommate plays violin (a concert C instrument). I play fife (a concern Ab instrument).
Fifes typically are played with music in either D or G, due to ease of hitting the notes on those scales. Violin also is typically played in a handful of keys.
Is there a way to make a piece of music sound good when played on both instruments, without introducing sharps and flats into the piece that are abnormal/inconvenient for the player to hit?