If I Ain’t Got You by Alicia Keys is in G at 144 beats per minute and runs 2:45 across 64 bars. It uses 10 chords — Cmaj7, Bm7, Am7, Gmaj7, Bbm7, Em7, D7, G#dim7, 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? If I Ain’t Got You guitar melody tab.