Buzz Extension & Resistance Piece: BERP (for Trombone)

Price: $15.49
SKU:  ae00-1783^BERP4
Manufacturer Part #:  BERP4
BERP is a brasswind practive device developed by Mario Guaneri to strengthen embochure, improve relative pitch and add resonance and range. The BERP clamps firmly onto the open end of the receiver, with the mouthpiece removed.

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