Wagner tuba

Wagner tuba (Fr.: tuba de Wagner; Ger.: Wagnertuba), valved brass instr. with conical bore, played with a funnel-shaped mouthpiece, built as tenor in B♭ and bass in F at the suggestion of Richard Wagner, as he wished to obtain a tone quality intermediary between that of the horn (as it existed then) and the tuba, for the performance of Der Ring des Nibelungen at Bayreuth in 1876. The result was an instr. resembling a wide-bore horn in oval tuba shape, with 4 valves. The compass of the tenor is…