Jam Tracks Portfolio Posted on March 4, 2017April 2, 2017 Fast Rock ‘n Roll Backing Track in A – 200 BPM! Author Sophisticated Ape Get ready to shred the blues! A fast backing track in the style of 50s rock ‘n roll and jump blues. 200 bpm! It’s in A using all 7th chords: A7 D7 E7.