Purviance 6⭐︎3B Purviance 6⭐︎3B This is the Purviance John Audino model. John Audino was the lead player on "The Tonight Show" for 20 years. The "B" in 6⭐︎3B refers to the shank size, which is compatible with instruments like Yamaha and Bach, and is equivalent to a Bob Reeves #5 shank. Personal impressions: The mouthpiece feels comfortable to play. The rim is thick and flat, and the cup is quite shallow, so it doesn't tire you out even during long performances or when playing in the high register, and it gives the impression that it's gentle on the lips. Also, with a moderate resistance and smooth blowing feel, despite the shallow specifications, it didn't feel overly tight or harsh, and gave the impression that it was comfortable to play. It is recommended for those who currently use Bach 5C, Bach 3C, Yamaha or Silky 13B4 or 14B4 mouthpieces and are looking for a trumpet mouthpiece for high notes, Latin, pop, or jazz. I purchased it directly from Bob Reeves in the United States, so the current price is around 50,000 yen or more for a new one. Please consider it.