Morris has performed and/or recorded with many of the most important artists in jazz and improvised music including, Anthony Braxton, Evan Parker, John Zorn, Ken Vandermark, Mary Halvorson, Tyshawn Sorey, Tomeka Reid, Fay Victor, Tim Berne, William Parker, Sylvie Courvoisier, Agusti Fernandez, Peter Evans, David S. Ware, Joe Maneri, Dewey Redman, Fred Hopkins, Sunny Murray, Wadada Leo Smith, Leroy Jenkins, Lawrence D. “Butch” Morris, Marshall Allen, Alan Silva, Karen Borca, Joe McPhee, Suzie Ibarra, Gerald Cleaver, Mat Maneri, Lowell Davidson, Barre Phillips, Barry Guy, Matthew Shipp, Billy Bang, Andrew Cyrille, Nate Wooley, Mark Dresser, Jamie Saft and many others.

Morris is featured on guitar or bass as a leader, co-leader, or sideman on more than 180 commercially released recordings on the labels ECM, ESPdisk, Clean Feed, Hat Hut, Aum Fidelity, Avant, OkkaDisk, Not Two, Soul Note, Knitting Factory, Leo, No Business, Rogue Art, Relative Pitch, Incus, RareNoise, Fundacja Sluchaj, Corbett and Dempsey, and his own labels Riti and Glacial Erratic. Morris has toured extensively throughout North America and Europe as well as in Brazil, Korea and Japan.

He has lectured and conducted workshops on his own music and on improvisation in Canada, Korea, Portugal, Northern Ireland, and Sweden and at Princeton University, Dartmouth College, Harvard University, Bard College, The University of the Arts, Virginia Commonwealth University, Mannes College of Music, University of Alberta, and University of Guelph. He has taught at Tufts University, Southern Connecticut State University, Longy School of Music of Bard College, and New School. Since 2000 he has been on the faculty in the Jazz and Contemporary Musical Arts Departments at New England Conservatory of Music. Morris is the author of the book, Perpetual Frontier: The Properties of Free Music (Riti Publishing 2012). Former faculty of Tufts University Experimental College. Recordings on Riti Records, AUM Fidelity, Knitting Factory, Okka Disc, OmniTone, Soul Note, Avant, Incus, Hat Hut, ECM, Leo, Homestead, NoMore, About Time.