Concert sets featuring both the last performance of Signe Anderson and the first by Grace Slick as lead singer of the Jefferson Airplane are due for release on October 26. The recordings, both made at the Fillmore in San Francisco in 1966, are part of a four album release that also includes a 1968 performance at the Matrix, a San Francisco club Airplane member Marty Balin had a stake in. The Matrix show includes versions of songs that would come out several months later on the Crown Of Creation album. The October 15, 1966 release featuring Anderson is a first as well as a last. In addition to it being her farewell performance with the Airplane, the live recording is also the only concert recording of the band with her as lead singer to be released. The live set featuring Slick fronting the band was recorded the very next night.
