Guo Musical Instrument Company New Design. Guo Musical Instrument Company Guo Musical Instrument Company (GMIC) is a Taiwan-based musical instrument manufacturer, specializing in flutes, piccolos, flute head joints, and saxophone necks and head joints. Founded by Geoffrey Guo in 1988, GMIC offers its products for sale online and through various retailers all over the world. Some of its instruments include a tenor flute, a G soprano flute, grenaditte flutes and a new C flute design called a Tocco flute. Many of these models of flutes and piccolos come in many different colors. In 2004, Geoffrey Guo and flute professor Mark Dannenbring developed the grenaditte
Contrabass flute the contrabass retains the facility for trills, as found elsewhere in the flute world. Ease of arpeggiation is moderate and thus equivalent to the rest of the flute family. The upper registers (middle C and above) lack the strength of tone found in its cousins; the strongest register is arguably that between G and G. Though the upper register can lack strength, its sensitivity and lyricism can be used to great effect; and a good instrument can readily reach the high A or B (above middle C). The 'haunting' low register (below G) has similar qualities to the bassoon, and