Heart Shaped Box by Nirvana is in C at 110 beats per minute and runs 2:59 across 31 bars. It uses 6 chords — A5, F5, D5, A, D7, Dsus. 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? Heart Shaped Box guitar melody tab.