He graduated from Erasmus Hall High School in 1967 and went on to attend State University of New York at New Paltz where he performed in a production of Carlo Gozzi's Turandot.

In classic '60s style, he dropped out of college in 1970 to work full-time on the Gargoyle, the Hudson Valley's first alternative or "underground" newspaper, which he helped to start in 1969 in New Paltz, Ulster County, NY – then a major center of student action, antiwar protest, assisted psychotropics, and artistic renaissance.

Malkine performed with Tim Hardin at the original Woodstock Festival, 1969; through the years he worked with many other musicians, including John Sebastian and Billy Faier.

As a performance poet and stand-up cultural commentator/singer, Horowitz has performed at hundreds of diverse venues, from the Village Gate, Westbeth Theater, and the Image Theater, in New York City with repeated visits to the 92nd Street Y; the Bumbershoot Festival, Seattle, Washington, the Taos Poetry Circus, Taos, New Mexico, a variety of not-so orthodox synagogues; the Rosendale Caves, Rosendale, New York; a headliner at several the Woodstock Poetry Festivals and many other events in Woodstock; Unison, New Paltz, NY; Clearwater Great Hudson River Revival Festival in Croton, New York; and many other locales.

Bach" Schickele, Allen Ginsberg, Ed Sanders & The Fugs, Robert Bly, Bob Holman, David Amram, Marilyn Crispell, Andrei Codrescu, Artie Traum and Happy Traum, Jay Ungar, Molly Mason, Phil Donahue, Amy Goodman, Natalie Merchant, Kate Pierson (B-52s), Raoul Vezina, and Ron Whiteurs, among many others.

Abraxas, Archae, Arson, Brilliant Corners, Chiron, City Lights Journal, Davka, Elysian Fields Quarterly, Exquisite Corpse, Graffiti Rag, Hanging Loose, Heaven Bone, Hunger, Io, Long Shot, Matter, New York Times, Pig Iron, Rattle, Spitball, White Pine Journal "Too Small To Fail" (with Gilles Malkine, a Carlos Fernandez Dish, 2011)