Crook, Brass, Woodwind & Wind Section

Crook, in brass musical instruments, detachable piece of metal tubing inserted between the mouthpiece and the main tubing or in the middle of the tubing to lengthen the air column produced. This manipulation allows the player to obtain notes not included in the harmonic series of the original air

Cor Omnitonique Attributed to Charles Joseph Sax (1791-1865

SUPVOX 1pc Trumpet Muffler Trumpet Bend Neck Trumpet

Baroque horns – EGGER

Gryphon Winds LLC

Brass & Woodwind Instruments - Jim Laabs Music Store

List of Common Woodwind Instruments - Instrumentful

Brasswind Musical Instruments

Lowell Greer Orchestral Natural Horn #27 - Hampson Horns

Hawkes and son plus F crook