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
Flute early 19th century. As such the instrument is often indicated as baroque flute. Gradually marginalized by the Western concert flute in the 19th century, baroque flutes were again played from the late 20th century as part of the historically informed performance practice. The Western concert flute, a descendant of the medieval German flute, is a transverse treble flute that is closed at the top. An "embouchure hole" is positioned near the top across and into which the flutist blows. The flute has circular tone holes larger than the finger holes of its baroque predecessors. The size and placement of tone