Flute hyperbass are other rare forms of the flute pitched two, three, and four octaves below middle C respectively. Other sizes of flutes and piccolos are used from time to time. A rarer instrument of the modern pitching system is the treble G flute. Instruments made according to an older pitch standard, used principally in wind-band music, include D piccolo, soprano flute (the primary instrument, equivalent to today's concert C flute), F alto flute, and B bass flute. The bamboo flute is an important instrument in Indian classical music, and developed independently of the Western flute. The Hindu God Lord Krishna
Contrabass flute model for flute ensembles. Contrabass flutes have also been made from PVC pipe, by the Dutch flute maker Jelle Hogenhuis. It is reported that while it might be thought that an instrument made from PVC would be inferior, the PVC allows for a louder instrument if the wall thickness is kept small. PVC also permits more rough treatment, as the plastic instrument can be bumped without denting. New solo and chamber music is being composed almost every day for this instrument, and performer Peter Sheridan has commissioned numerous works from composers around the world, including: Alex Shapiro, Patrick Neher, Vinny