Founded in 2014, Drei Bones combines the talents of veteran orchestral trombonists and college professors Michael Davidson, Timothy Howe, and J. Mark Thompson. The group is dedicated to presenting a broad spectrum of music for two tenor trombones and one bass trombone ranging from new music commissions to transcriptions from the classical literature. They have presented concerts and masterclasses throughout the United States including the American Trombone Workshop, the Colorado State University Brass Festival, the Midwest Trombone & Euphonium Conference, and many other colleges and universities. In 2015 Drei Bones released a CD of new and traditional works for trombone trio through Emeritus Recordings.

Michael Davidson is Associate Professor of Trombone at the University of Kansas and, since 1985, principal trombonist of the Shreveport Symphony Orchestra.  He has performed with the Kansas City, Jacksonville, Arkansas and South Arkansas Symphonies as well as the Tulsa Philharmonic, the Spoleto Festival Orchestra USA, the Sunflower Music Festival, the Lyric Opera of Kansas City, the Kansas City Brass Works, the I-49 Brass, and the Fountain City Brass Band. Mike earned degrees from the University of Florida, Centenary College of Louisiana, and the University of Cincinnati College-Conservatory of Music.  

Timothy Howe is Associate Professor of Trombone at the University of Missouri-Columbia. From 1983-2004 Tim was a trombonist with the Omaha Symphony. He has performed with the Kansas City, Shreveport, Arkansas, South Arkansas, Lincoln and Pine Bluff (AR) Symphonies, and is currently principal trombonist of the Des Moines Metro Opera Orchestra. He holds graduate degrees from University of Nebraska and a B.Mus. in trombone performance from Northwestern University, where he was a student of Frank Crisafulli.

J. Mark Thompson is Professor of Music at Northwestern State University of Louisiana. He holds degrees from Murray State University, University of Southern California, and University of Iowa. A charter life member of the International Trombone Association, mark chairs its Advisory Council on Literature, and he is a life member of the International Tuba Euphonium Association. Formerly Principal Bass Trombone of the Civic Orchestra of Chicago, he performs bass trombone with the Shreveport, South Arkansas and Alabama Symphonies, as well as the Lancaster (OH) Festival and Des Moines Metro Opera Orchestra, and the I-49 Brass.