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
Double contrabass flute large flutes. Despite the tendency of the larger sizes of flute to be softer than their higher pitched relatives, the double contrabass flute has a relatively powerful tone, although it usually benefits from amplification in ensembles. The Japanese firm of Kotato & Fukushima sell their double contrabass flutes for US$38,000. Their main use has been in large flute choirs and occasionally in film scores. A double contrabass flute constructed of PVC, called a subcontrabass flute by its maker, the Dutch instrument maker Jelle Hogenhuis, has the tubing in a notably different arrangement from its metal counterpart. Although the PVC instrument