Features Level: Custom Artist Model SeriesKey: BbBore ML: 0.459"Bell diameter: 4-7/8"Mouthpipe: yellow brassBody material: yellow brassBell material: yellow brassKey buttons: mother of pearlFinish: silverValves: Monel, 2-piece valve casings Description Product Description The Yamaha YTR-9335NYS trumpet was designed to solve issues Robert Sullivan had with his previous trumpets. He had played Yamaha Bb trumpets for quite a few years and loved the even scale, intonation and responsiveness, but often felt that the trumpet needed more depth of tone and was difficult to shade colors the way his other horns could. His Yamaha trumpets also did not open up at extreme dynamics as he would have liked. Robert owned two trumpets of another brand, one from the mid '70s and a new horn from around 1999 that were used as examples of the deep, rich tone he liked. While they allowed him to change the color better than the Yamaha, sometimes there was no control over the color changes. He also felt the scale to be uneven and out of tune, and the response was very slow. An artist of Sullivan's caliber wanted a trumpet that combined the best qualities of both instruments: richness of tone, flexibility and control of color changes, an even scale, good intonation and good response. The goal when working on this trumpet with Yamaha trumpet designer Bob Malone was always focused on two factors: sound and feel. First, don't confuse tone with sound. Tone is just on