Michael is solo/principal trombonist of the American Composers Orchestra, the Manhattan Brass, for the cross-genre chamber orchestra-cum-rock band, Absolute Ensemble, and has recorded & toured extensively with these groups. Orchestras include the Orchestra of St Luke’s, St. Paul Chamber, American Symphony Orchestra, NY City Ballet & Opera, NY Pops, Metropolitan Opera, the Knights, and internationally from Sarajevo to Adelaide, Australia’s Symphonies.
Additionally, he has recorded for television and film, and has performed and recorded contemporary music with groups such as Bang-on-a-Can Marathon, and the ST-X Ensemble Xenakis.
He has performed with the New York Collegium and American Classical Orchestra; New York's acclaimed period orchestras, and also enjoys solo performance, appearing in recital at the Caramoor Festival's winter 'Artist Spotlight' series and for Lincoln Center’s ‘Meet-the-Artist’ series.
Michael has been teaching for nearly as long as he has played an instrument; he very much enjoys giving back to those who are eager to learn. He currently teaches at some of NYC’s top schools in the private sector, including the Calhoun School, Packer Collegiate, and the Horace Mann School, in addition to Columbia Univ., and numerous clinics and guest appearances throughout the region.
Mr. Seltzer has been a panelist for Chamber Music America's National Conferences and has been a guest clinician/lecturer at many esteemed institutions including The Juilliard School, Princeton University, the Curtis Institute, UCLA, Indiana University at Bloomington, Temple University, and the Hochschulen für Music in Bremen and Stuttgart, Germany among many others. He did doctoral work at New York University and received degrees from California State University, Northridge and Manhattan School of Music. He has designed educational programs for Midori & Friends, the Fischoff Chamber Music Society, and the Manhattan Brass, of which he is a founding member.