Limb is a Foetus compilation album, released on May 15, 2009 by Ectopic Ents.^[1][2] Limb collects out-of-print and previously unreleased instrumental tracks from the early days of Foetus (Thirlwell's instrumental tracks would later be released under the names Steroid Maximus and Manorexia). Limb is packaged with a DVD featuring Clément Tuffreau's NYC Foetus documentary about Thirlwell's life in New York City, along with several live performances of Thirlwell's ensembles and commissioned music.^[3]

Many of the pieces on Limb are influenced by minimalist composers, with Thirlwell citing John Cage, Steve Reich (particularly his phasing technique) and Terry Riley in the liner notes.^[4] A 20-minute phase piece titled "You Have to Obey", comprising a looped Vincent Price sample, is included as a bonus track in audio MP3.

In keeping with Limb's minimalist theme, the album comes packaged with a book of minimalist art in Thirlwell's "signature color palette of red, white, black and gray."^[4] The pieces are in the styles of individual artists including Joan Miró, Bridget Riley and Wassily Kandinsky and art movements like Constructivism.^[4]

• Heung-Heung Chin – art direction
• Harley Cockburn – engineering (1, 3, 5, 6, 10, 11)
• Charles Gray – engineering (1)
• Fred Kevorkian – mastering
• Warne Livesey – engineering (1)
• Elena Park – violin (8)
• Foetus (J. G. Thirlwell) – vocals, instruments, producer, recording, design