Warm-Ups for Trombone Choir, Volume One: Quartets by Bruce Tychinski is appropriate for high school through professional trombone players.
Warm-Ups for Trombone Choir is divided into two volumes: Volume One is quartets and Volume Two is octets. The two volumes contain completely different exercises and are both intended for use by trombone choirs of all sizes—chamber ensembles and large choirs doubling, tripling, or even quadrupling the parts. The warm-ups focus largely on harmony and balance in the choir, but there are also exercises that address specific concepts such as modulations, tone clusters, and bell tones. By beginning each rehearsal with a few of these fun, short exercises, your choir will be focused, listening to one another, and the overall group sound will steadily improve from one week to the next.
"Warm-Ups for Trombone Choir by Bruce Tychinski is a must for all trombone choirs. It deals with harmony and balance between parts and includes a tremendous quantity of musical examples for technical control of the music. Highly recommended!" - John Marcellus, Professor of Trombone (retired), Eastman School of Music