Choose Options Quick view Yamaha Mouthpiece Adapter Yamaha MSRP: Now: $109,685.32 Was: Mellophone mouthpiece adapter allows to use horn mouthpieces. Trombone mouthpiece adapter allows large bore to use small bore mouthpieces. MSRP: Now: $109,685.32 Was: Choose Options Quick view Qty in Cart: 0 Price: MSRP: Now: $109,685.32 Was: Subtotal: Choose Options