10 Original Duets for Trombone. Par OTTO M. SCHWARZ. The ?Stay Tuned - Swinging Christmas? duets stem from another collaboration with the trumpeter Thomas Gansch. These duets are not only available for trumpets, however. The pop and jazz duets are also available for trumpet with trombone, two trombones, two horns, two saxophones at the same pitch, two flutes and two clarinets. / Date parution : 2021-12-09/ Recueil / 2 Trombones