"Mi" is a form of "mi"an adjective which is often translated as "my". "Mí" is a form of "mí"a pronoun which is often translated as "me". Learn more about the difference between "mi" and "mí" below.
Creo que deberíamos tocar la canción en repero nuestro bajista quiere tocarla en mi.I think we should play the song in Dbut our bass player wants to play it in E.