Watch the A Cropper of Sixths online guitar lesson by Chris Buono from 50 Rock Guitar Licks You MUST Know

When you get down to it, every interval has it's own intrinsic role to play. For instance, could you imagine playing a tune's worth of 2nds where power chords (5ths) were intended to be? Or playing "Smoke on the Water" with 3rds instead of 4ths? The same holds true for those classic sounding sliding 6th licks. In the vein Steve Cropper, who may just be able to patent this interval, this lick not only makes use of major sixths, but introduces an often overlooked and under appreciated component: space.