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
Contrabass flute Phyllis Avidan Louke, and Judy Nishimura, among others. One is a "contrabass flute in G," pitched a fourth below the bass flute and an octave lower than the alto flute; thus, this is technically, a contra-alto flute. The other instrument is a "subcontrabass flute in G" pitched one octave below the contra-alto flute, or two octaves below the alto flute in G. Kotato & Fukushima also produce a "subcontrabass flute in C", a large, deep instrument pitched a full octave below the contrabass flute in C. Contrabass flute The contrabass flute is one of the rarer members of the flute