Ophicleide

The ophicleide (/ˈɒfɪkliːd/ OFF-ih-kleed) is a family of conical-bore keyed brass instruments invented in early 19th-century France to extend the keyed bugle into the lower range. Of these, the bass ophicleide in eight-foot (8′) C or 9′ B♭ took root over the course of the 19th century in military bands and as the bass of orchestral brass sections throughout Western Europe, replacing the serpent and its later upright derivatives. By the end of the 19th century, however, it had been largely superseded, in bands by the euphonium and in orchestras by early forms of the modern tuba, some developed from valved ophicleides. The late 20th century saw a revival of interest in the instrument for historically informed performance practice, and ophicleides are built by a small number of manufacturers.