You’re A Grand Old Flag by George M. Cohan is in G at 120 beats per minute and runs 1:57 across 74 bars. It uses 24 chords — G, D7, Ddim7, F7, Bb, Fdim7, Eb7, D, 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? You’re A Grand Old Flag guitar melody tab.