The Matrix

Glyph "Glyph" Lefkowitz : glyph (at) twistedmatrix.com

electric violin

Sean "Riley" Riley : sean (at) twistedmatrix.com

grand piano

Allen "Dash" Short : washort (at) twistedmatrix.com

vocals and guitar

Christopher "Radix" Armstrong : radix (at) twistedmatrix.com

percussion

Paul "z3p" Swartz : z3p (at) twistedmatrix.com

oboe

Jürgen "snibril" Hermann : jh (at) twistedmatrix.com

synthesizer

Moshe "vertical" Zadka : moshez (at) twistedmatrix.com

accordion

Benjamin Bruheim : grolgh (at) online.no

kazoo

Travis B. "Nafai" Hartwell : nafai (at) twistedmatrix.com

keyboards

Itamar "itamar" Shtull-Trauring : twisted (at) itamarst.org

alto recorder

Andrew "spiv" Bennetts : andrew (at) puzzling.org

glockenspiel

Kevin "Acapnotic" Turner : acapnotic (at) twistedmatrix.com

trombone

Donovan "fzZzy" Preston : dp (at) twistedmatrix.com

bass and harmonium

Jp "exarkun" Calderone : exarkun (at) twistedmatrix.com

geopolitical sociographic dissonance engine

Gavin "skreech" Cooper : coop (at) coopweb.org

torque wrench

Jonathan "jml" Lange : jml (at) twistedmatrix.com

pipe organ

Bob "etrepum" Ippolito : bob (at) redivi.com

low frequency oscillator

Pavel "PenguinOfDoom" Pergamenshchik : pp64 (at) codelock.com

electronic balalaika

Jonathan D. "slyphon" Simms : slyphon (at) twistedmatrix.com

theramin and drums

Brian "warner" Warner : warner (at) twistedmatrix.com

hertzian field renderer

Mary Gardiner : mary-twisted (at) puzzling.org

krummhorn

Eric "teratorn" Mangold : teratorn (at) twistedmatrix.com

serpentine bassoon

Tommi "Tv" Virtanen : tv (at) twistedmatrix.com

didgeridoo

Justin "justinj" Johnson : justinj (at) twistedmatrix.com

bass mandolin

Extras

Jerry Hebert : jerry (at) cynics.org
Nick Moffit : nick (at) zork.org
Jeremy Fincher