Garzone is a member of the Fringe, a jazz trio founded in 1972 that includes bassist John Lockwood and drummer Francisco Mela, who fills the drum chair occupied for over 50 years by the late Bob Gullotti.

He toured Europe with Jamaaladeen Tacuma and performed with Jack DeJohnette, Joe Lovano, John Patitucci, Danilo Pérez, Rachel Z, and Bob Weir and Ratdog.

His students include Mindi Abair, Branford Marsalis, Donny McCaslin, Danilo Pérez, Joshua Redman, Luciana Souza, and Mark Turner.

He has also performed with Don Alias, Kenny Barron, Paul Feeley Dennis Chambers, Stanley Cowell, Anton Fig, Dan Gottlieb, Tom Harrell, Dave Holland, Dave Liebman, Cecil McBee, Bob Moses, Gary Peacock, Marvin Smith, Bill Stewart, Harvie Swartz, and Lenny White.

[2] The triadic chromatic approach is an improvisatory method created by Garzone while teaching at colleges in Boston and New York City.