Description Product Description Yamaha Intermediate Flutes offer the durability of the Standard Flutes yet produce greater resonance. The Intermediate Series features an improved scale for better intonation as well as an undercut and beveled embouchure hole for a clean attack, sensitive response and accurate intonation. Recent improvements include a stronger post design to prevent bending of the posts, easily accessible adjustment screws, an improved adjustment screw material and a body marking for proper positioning of the footjoint.