Parts included for both C Bass Clef and Bb Treble Clef Trombones. Pascal Proust has many years of experience as a musician and music teacher. His works include several hundred compositions for the most diverse range of instrumentations. He wrote 14 Easy Trombone Quartets for trombone players who have around 3 years of experience, and paid special attention to an easy-to-follow and attractive musical style. These quartets are ideal performance and competition works for young trombone ensembles.