The Yamaha YFL-421 flute features all the qualities of an advanced intermediate flute without the hassle of open hole keys. A solid silver headjoint, body, and footjoint ensure a warm, vibrant, and professional tone. The beveled and undercut embouchure hole provides crisp attack, quick response, and great intonation. An offset G key setup is used to facilitate natural hand positioning. Nickel-silver, power-forged keys and a thickened post design make a strong, durable mechanism. Another benefit of thickened posts is strengthened rod alignment. Double bladder pads offer a superb seal and long life. Unique screw resistance inserts are employed which allow quick adjustments to be made, but prevent screws from slowly loosening over time. All these features combine to create a flute that is durable, responsive, and easy to play.