Saturday In The Park by Chicago is in C at 120 beats per minute and runs 2:44 across 32 bars. It uses 15 chords — Am7, D9, D7, Dm9, Dm7, C, Bm7, Em7, 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? Saturday In The Park guitar melody tab.