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
Members of the western concert flute family is sometimes referred to as a "contrabass flute in G". An instrument in the key of G, pitched a fourth below the contrabass flute in C and two octaves below the alto flute in G; it is sometimes also called a double contra-alto flute. The double contrabass flute (sometimes also called octobass flute) is pitched in the key of C, three octaves below the concert flute (two octaves below the bass flute, and one octave below the contrabass flute). Its lowest note is C, one octave below the cello's lowest C. Despite the tendency of the larger sizes of flute