Backun Corrado Signature Clarinet MouthpieceCorrado Signature Bb Clarinet Mouthpiece Maestro Corrado Giuffredi knows no bounds and this mouthpiece proves it. A traditional bore design with a more open long facing, the Corrado Signature is a gorgeous take on a flexible centred tone and is crafted on marbled green hard rod rubber. With playable ease and smoothness across registers, this model yields an altissimo that produces wonderfully strong overtones and rich character. Tip Opening: 1. 20mm.