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
Hyperbass flute wood. There appear to be wide tone holes, made from standard tee fittings, but without keys; these are covered with the palms of the hands. The first known example of the instrument was built by Francesco Romei, a Florentine craftsman, for Italian flautist Roberto Fabbriciani. Fabbriciani is the inventor and primary performer of this instrument. He calls it "hyperbass flute" and "flauto iperbasso" in Italian. Low flute specialist Peter Sheridan commissioned the first fully chromatic hyperbass flute from the Dutch maker Jelle Hogenhuis in August 2010. The first composition for the hyperbass flute with live electronics and magnetic tape is