Treble flute trill keys, and soldered keys. It is very similar to a piccolo, and plays in the same range, although, because it is a slightly larger instrument, it has a different quality at the upper end of its register, and it has an extended lower register, as compared with the piccolo. The instrument should not be confused with the Alto Flute, also in G, which is a larger instrument that transposing down by a fourth to the octave below the treble flute. Since the demise of the Renaissance flute consorts, the use of this treble flute in G seems to have
Members of the western concert flute family or curved. The bass flute is pitched in the key of C, and one octave below the concert flute. Because of the length of its tube (approximately ), it is usually made with a curved headjoint, sometimes in a "J" shape, to bring the embouchure hole within reach of the player. It is usually only used in flute choirs, as it is easily drowned out by other instruments of comparable register, such as the clarinet. The contra-alto flute (also called contrabass flute in G) is in the key of G, pitched one octave below the alto flute, and a fourth