I Believe In Music by Mac Davis is in Db at 100 beats per minute and runs 2:26 across 37 bars. It uses 5 chords — Ab, Db, Eb7, Bbm, Eb. 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 Believe In Music guitar melody tab.