|Composer Time PeriodComp. Period
||2 trumpets in C, trombone, bass trombone
Studies for two trumpets and two trombones - These sonatas are not written for public performance. They were composed as a study for four brass instruments. These short pieces are arranged in order to excel and facilitate one's technical skills in the art of "imitation" in intonation, articulation, timbre and velocity by repetition, hence their name the "Echo" sonatas.