![Blood Sugar Sex Magik cover](https://cdn.mos.cms.futurecdn.net/KadRhwae3Nt4VmpjzYrpq-320-80.jpg)
"He seems kind of all over the place but this thing is spot on": Brendan O'Brien on his first encounter with John Frusciante and how they recorded the Under The Bridge intro
O'Brien engineered and mixed 1991's Blood Sugar Sex Magik and saw the secret to a great guitar tone first-hand