(Anesthesia) Pulling Teeth is a bass Standard written by Cliff Burton. An instrumental track, with accompaniment on drums by Lars Ulrich, it features Burton's distinctive style of playing, incorporating heavy distortion, use of the wah-wah pedal, and tapping. This is also the bass solo that Burton was playing when Hetfield and Ulrich first saw him at a gig: “We heard this wild solo going on and thought, ‘I don’t see any guitar player up there.’ It turned out it was the bass player, Cliff, with a wah wah pedal and this mop of hair. He didn’t care whether people were there. He was looking down at his bass playing.” -James Hetfield

They immediately wanted Burton in their band.