Roseman's most telling mentorship was with trumpeter Lester Bowie, where he acquired a refined style and sense of humor. Arriving in New York City where he was a participant in the early Knitting Factory heyday of the early '90s, Roseman was acclimated quickly as a co-founder of the acid-jazz dance band the Groove Collective and the less appreciated Giant Step. Among the many artists he has performed with are Joe Maneri, Muhal Richard Abrams, George Russell, and Bob Moses while at school, and professionally, Frank Lacy, Graham Haynes, John Zorn, the Dave Holland Big Band, Roswell Rudd, Joey Baron, Ellery Eskelin, Don Byron, Dave Douglas, Steve Coleman, Steve Turre, Ron Blake, Oliver Lake, Christopher Hale, Don Byron, Uri Caine's Mahler Ensemble, the original SFJazz Collective, the Skatalites, Sheryl Crow, Medeski, Martin Wood, Soulive, Charlie Hunter, the Roots, Cibo Matto, Mike Gordon, Sean Lennon, Brooklyn Funk Essentials, Bojan Z, John Aram the Geneva Downtown Orchestra, and Riccardo Fassi.
A quintessential sideman, Roseman does own a small discography with his ensemble the Josh Roseman Unit produced for the Enja label -- Cherry, Treats for the Nightwalker, and New Constellations -- which collectively included Peter Apfelbaum, Barney McAll, Ben Monder, Jonathan Maron, Billy Kilson, Chris Potter, Liberty Ellman, Ben Perowsky and Mark Feldman. Roseman is busy aside from staged music, as a trombone instructor and improvisation coach for the New School For Social Research at N.Y.U., the Harlem School for the Arts, and the Banff Centre in Alberta, Canada. He lives in the Williamsburg district of Brooklyn, N.Y. where he is founder of a cooperative production and performance facility. A born experimentalist, Roseman also plays tuba, euphonium, bass, drums, piano, and his Mac P.C. ~ Michael G. Nastos, Rovi