“The physiology of brass playing has been shrouded in myth and misconception for decades, leading to pedagogical practices that are at best useless, and at worst quite damaging. Trumpet virtuoso and myth-buster Greg Spence has sorted us out, setting forth a method that defuses the madness. At once brilliant and stunningly simple, Mystery to Mastery is essential material for the global community of brass players.” – Rex Richardson, International Trumpet Soloist