Abstract: A front-operated Bb key for clarinets, enabling a pure Bb note to be obtained without the player's having to remove his right-hand first finger from its basic finger-hole position. The original side Bb key is extended laterally across the front of the instrument, and downwardly to a position adjacent to the finger-hole normally covered by the first finger of the right hand. An additional spatula is provided for actuation by the first finger in a rolling motion, the spatula contacting the finger at a point near the first knuckle joint. The additional spatula is adjustable in both position and angular orientation, to suit the size and fingering style requirements of different players.

Abstract: A clarinet is provided with a post protruding above the keys adjacent the A key to limit the extent that the clarinetist can move his finger along the clarinet barrel over the convex surface of the A key and away from the F sharp key. The post provides a corrective device to assist the pupil clarinetist to locate his fingers correctly to execute the clarinet break. The post is removable so that it is essentially a teaching device alone. The post may form part of a clip attachment which can be fitted to the clarinet barrel when the pupil is under instruction.

Abstract: A pocket within the barrel of a clarinet for accumulating moisture introduced into the bore of the barrel from the mouthpiece and a valve controlled opening communicating with both the pocket and exterior surface of the barrel which can be selectively opened to clear the pocket and opening of moisture accumulated therein as desired.

Abstract: A spring break mechanism is disclosed wherein a key is operatively connected to a key pad cup by means of a needle spring. The motion of the key is transmitted by the spring to the cup. The cup may be moved to open the associated tone hole, even with the key depressed, by means of another key mechanism acting on a lever integral with the cup by overcoming the tension of the spring.