After being thrown 15 feet off of the Rainbow Theater stage in London on December 10, 1971 by unstable concert attendee Trevor Howell, Frank Zappa spent the better part of the following winter and spring in rehearsals for what would become the 　　Waka/Jawaka 　　(1972) and 　　Grand Wazoo 　　(1972) platters and related live shows. Joe's Domage (2004) -- the second in a series of never-before-available material from the luminous Frank Zappa tape vaults -- gathers 50 minutes from these closed-door sessions, during which Zappa was confined to a wheelchair as he recuperated. The incident left the guitarist with some permanent damage, with a lower voice from a partially crushed larynx, and a fractured right leg which ended up shorter than the left, as referenced in the lyrics of "Zomby Woof" and "Dancin' Fool." Being off the road resulted in some of the Zappa's most involved fusions of jazz and rock. These rehearsals were most likely not meant for public consumption, having been sonically remastered from a decidedly lo-fi cassette. For all intents and purposes, this is an examination of the modular process that Zappa used when creating his extended works and intricately detailed compositions, including contributions from an impressive lineup of Zappa (guitar/spoken instructions),