FIELD: production of musical instruments. SUBSTANCE: a flexible reed and a frame with a port are mutually connected at a level of a mean portion of their thickness. The instrument has a voice plate, having a groove on walls of the port in the frame around a free end of the reed. The thickness of the frame and a width of the groove have such dimensions, that they are being inscribed respectively into a maximum and minimum amplitudes of oscillations of the reed. The frame is in the form of a thin-wall member, bent along a profiles of the ports with provision of grooves between the last. EFFECT: enhanced structure of the instrument. 5 cl, 1 dwg
