Several years ago when my schedule initially began to get heavily booked with FZ projects I ended up mixing and mastering 30 Zappa concerts in a 14 month period, 18 Zappa plays Zappa concerts & 12 vintage Frank concerts & they were all mammoth with shows ranging between 2 to 3 hours long. The ZPZ shows were big sessions with 48 tracks with a lot of stuff to be looked at, muted etc... a lot of stuff (fortunately I had Nicole Lexi Davis there to help assist me technically with the heavy load) and the Frank recordings for 1 of the series of concerts / box set also involved a great deal of detailed restoration ( at the molecular level )over the span of 25 reels of tape . Always nothing short of an incredible honor is how I describe working on anything of Frank's. Ever!