The Minor 4th Trombone Quartet is a chamber ensemble noted for its high level of musicianship and technical ability. The M4TQ formed in 2005; its members are all graduates of The University of Texas at Austin's Butler School of Music. They now serve on the faculties of four Texas universities. The are artists for TheGigEasy and affiliates of AirTurn, Inc. They will be performing Jan Koetsier's Concertino for 4 Trombones and String Orchestra.