The hidden track at the end of Pearl Jam’s 1991 debut album Ten, after the end of Release. A small part of it also appeared in the beginning of the album, just before the opening chords of Once.
Producer Rick Parashar had this to say about the song in a 2002 interview with Guitar World:
As I recal...
Lyrics for this song have yet to be released
Master/Slave was written by Jeff Ament.
Master/Slave was produced by Rick Parashar & Pearl Jam.
Pearl Jam released Master/Slave on Tue Aug 27 1991.