Puff The Magic Dragon by Peter, Paul & Mary is in A at 132 beats per minute and runs 2:16 across 32 bars. It uses 6 chords — A, C#m, D, F#m, B7, E. 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? Puff The Magic Dragon guitar melody tab.