She Used To Be Mine by Michael Crawford is in C at 92 beats per minute and runs 2:55 across 64 bars. It uses 40 chords — C, F, Dm7, Am, Gsus, G, Csus2, Am9, and a few more. The chord diagram changes as the song plays and the words light up as they are sung, so you can strum and sing along without reading ahead.
Want the melody line note by note? She Used To Be Mine guitar melody tab.