A musical instrument training device, system, and method are provided for teaching a plurality of wind instrument embouchures. The instrument includes an elongate body having first end and a second end opposite the first end and defining an internal bore extending longitudinally between the first and second ends. A single-reed instrument mouthpiece is coupled to the first end and a brass instrument mouthpiece is coupled to the second end. In a preferred, more limited aspect, a lateral flute embouchure tone hole is formed in the wall of the elongate body.