- Dan Walsh — Bent Beard
- Damian Darlington — Brit Floyd
- Myk Freedman — Sandcatchers
- Mike “Slo-Mo” Brenner — Marah
- Megan Lovell — Larkin Poe
- Haro Echter
- Craig Loveridge
- Jordan Rudess — Dream Theater
- Jamie Humphries/Brian May, Queen, Jeff Beck, Aussie Floyd, WWRY, Gutterdämmerung/Henry Rollins
- Stephen McElroy — Aussie Floyd
- John Conrath — Floyd Nation
- Chris Hinson — Interstellar Echoes
- Kevin Laugier — Darkskye
- KOYL
- David Hills
- Steve Cunningham
- Jason Lynn — Moving Blues
- Rev. Ralph Childs
- Pete Fetters
- David Kristian
- Danny Click
- Loren Claypool
- Sander Roscoe Wolff
- Baron Jarred Von Hand — Kind Fall
- Steel Petals
- Pepper Keenan
- Don Joslin
- James Mayer — Xul Solar, The Subcons
- Chris Outlaw
- Judy Outlaw
- Tom Dimock
- Warren Mutimer
- Ito Hiroshi
- Jesus V. Luna
- Jay Krasnow
- Joseph Juliano
- Jeff Murray
- Hugh Ashton
- Massimo “Max” Lucarella
- Johnny Andrews — Alligator Stew
- Stanley Snodgrass
- Tonefrenzy
- James Hansen