Brass Performance by Robert D. Weast. McGinnis & Marx, 1965, SS, 87 pages. An analytical text of the physical processes, problems and technique of brass. Its purpose is to define and evaluate the basic principles of the brass players' physical performance and present them in practical applications. The main topics, which are covered in detail, are tone production, the embouchure, air dynamics, diagnostic and remedial procedures, specifics of brass, and a precise guide to controlled playing.