DESCRIPTION: GR Player Dan Fornero testing his new GR Mouthpiece with Gary Radtke. Listen to the burn and accuracy as Dan plays "Sweet Georgia Brown Upside Down". Dan is playing a Yamaha Vizzutti Trumpet and a custom GR Mouthpiece with a standard 3 Series rim. The cup volume is close to a Standard GR "MS" cup with a higher alpha angle, lower beta angle and a matching throat entrance for that particular design. GR doesn't just make mouthpieces, he provides Trumpet Playing Solutions.