Sunday, July 27, 1969 closed the Steve Miller Blues Band's stand at the Fillmore West with Albert King and Mountain, ending the BG-183 week.

Mountain had existed for a matter of months. Leslie West and Felix Pappalardi — a guitarist with an enormous tone and a producer who had worked on Cream's records — formed the band that year, and would play Woodstock three weeks after this booking as roughly their fourth-ever show. Albert King, second-billed, was the opposite: a Mississippi-born left-hander who played a right-handed Flying V upside down, whose *Born Under a Bad Sign* had come out on Stax the previous year cut with Booker T. and the MGs, and whose string-bending went directly into Clapton, Hendrix and later Stevie Ray Vaughan.

BG-183 is a split sheet — Ten Years After with Ike & Tina Turner and the Flock on the front half, this bill on the back — which is the pattern this chronicle keeps having to point out. One poster names a span; the nights inside it were separate shows.