Locomotive Breath by Jethro Tull is in Em at 90 beats per minute and runs 2:08 across 21 bars. It uses 5 chords — Em, G, D, B, A. 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? Locomotive Breath guitar melody tab.