Tuba rotary-valved tubas pitched in the same octave as euphoniums. The "Small Swiss Tuba in C" is a tenor tuba pitched in C, and provided with 6 valves to make the lower notes in the orchestral repertoire possible. The French C tuba was the standard instrument in French orchestras until overtaken by F and C tubas since the Second World War. One popular example of the use of the French C tuba is the "Bydło" movement in Ravel's orchestration of Mussorgsky's "Pictures at an Exhibition", though the rest of the work is scored for this instrument as well. Larger BBB subcontrabass
Tenor cornett The tessitura of the tenor cornett is c to around e". However, an experienced player with a powerful embouchure and a small bore instrument may reach g" or higher. The timbre or sound quality of the tenor cornett is somewhat horn-like with an agreeable woodwind character. In the hands of an experienced player, the tenor cornett has a smooth sound, which is an ideal link between the sound of the higher cornetti and the lower trombones. The sound has been described as "foggy". The instrument blends extremely well with male voices, particularly those of countertenors. Michael Praetorius was not enthusiastic