Contra-alto flute repertoire for bass flute and contrabass flute see: Peter van Munster, "Repertoire Catalogue for Piccolo, Alto Flute and Bass Flute", Roma: Riverberi Sonori, 2004. More and more flute ensemble repertoire is incorporating the contra-alto flute. Typically, it is doubled with the contrabass (and/or bass) flutes, however, in recent years, composers and arrangers such as Alexandra Molnar-Suhajda and Judy Nishimura have been pushing the boundaries of lowness by writing independent parts for the instrument. Contra-alto flute The contra alto flute is in the key of G (or sometimes F), pitched one octave below the alto flute - which is a fourth
Alto flute the bottom octave and a half of its range. It was the favourite flute variety of Theobald Boehm, who perfected its design, and is pitched in the key of G (sounding a perfect fourth lower than written). Its range is from G (the G below middle C) to G (4 ledger lines above the treble clef staff) plus an altissimo register stretching to D. The headjoint may be straight or curved. British music that uses this instrument often refers to it as a bass flute, which can be confusing since there is a distinct instrument known by that name. This