A tone control device applied to an electronic wind instrument realizes an octave-changeover-blowing technique in which the same note is produced with different octaves respectively by use of the same fingering state, thus increasing controllable ranges with regard to the tone volume, tone color, and tone pitch. A plurality of flow sensors are arranged in proximity to an edge with which a jet flow caused by blowing air into a blow hole of a lip plate collides within a tube of a wind instrument controller simulating an air-reed instrument. The flow sensors are horizontally arranged to detect a jet width, thus controlling the tone volume; and the flow sensors are vertically arranged to detect a jet eccentricity or a jet thickness, thus controlling the tone color. Ascending or descending of the tone pitch by octaves is controlled by use of the flow sensor and a jet length sensor.

 
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