If I Only Had A Brain from The Wizard Of Oz by Harold Arlen is in D at 180 beats per minute and runs 1:05 across 26 bars. It uses 20 chords — D, Em, A7, Dsus4, G, N.C., A9, Am7, 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 Only Had A Brain from The Wizard Of Oz guitar melody tab.