Kaiserbass

Kaiserbass (Ger.) (Fr.: basse impériale), bombardon (brass instr.) of Vaclav F. Červeny of Königgrätz (Hradec Králové), 1883, similar to his Kaiserbaryton; made in tuba or helicon form, pitched in F or E♭, C or B♭, with 3 or 4 valves and a bell having a diam. of up to 55 cm. (22 in.). Called imperial bass in Engl.