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Eight singers and one vocal percussionist perform the entire album. The album was recorded in High Definition, without breaks between the tracks, and is as close to the original timing as possible, in order to preserve its Wizard of Oz compatibility.
"We tried to include the full spectrum of sounds, timbres, and emotions that the human voice is truly capable of making. I assure you every sound you hear was created only by voices. No instruments, no drums, just a cappella. This recording breaks new ground in both the worlds of a cappella and rock."
"Outstanding," said Doug Sax, Mastering Engineer for "Dark Side of the Moon A Cappella" who also mastered most of Pink Floyd's original albums. "Absolutely outstanding job!"