I Forgot To Be Your Lover by William Bell is in Em at 140 beats per minute and runs 2:10 across 27 bars. It uses 7 chords — Em, D, C, G, Am, Bm, N.C.. 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? I Forgot To Be Your Lover guitar melody tab.