Different Summers by Demi Lovato is in Ab at 75 beats per minute and runs 3:22 across 58 bars. It uses 17 chords — Eb, Ab, Fm11, Bbsus, Bb, Cm, Db, Cb, 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? Different Summers guitar melody tab.