There But For Fortune by Phil Ochs is in G at 140 beats per minute and runs 1:02 across 16 bars. It uses 7 chords — G, Cm, Em, Am, D, C, Bm. 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? There But For Fortune guitar melody tab.