Guo Musical Instrument Company 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 flute. This
Xindi (instrument) which complements the other orchestral instruments better. All these reasons contribute to why its use for solo performance is so restricted and rare. Xindi (instrument) The xindi (; literally "new flute") is a Chinese musical instrument. A 20th-century derivative of the ancient "dizi" (bamboo transverse flute), the "xindi" is western influenced, fully chromatic, and usually lacks the dizi's distinctive "di mo", or buzzing membrane. The xindi is also known as the 11-hole di (十一孔笛). Its design is western influenced and based on the principal of equal temperament. It first appeared in the early 1930s. It was designed and produced by