Dr. Charles Colin’s “Advanced Lip Flexibilities Complete (3 Volumes in 1)” is one of the most widely used trumpet study books in the world. This series of outstanding exercises was developed to enhance range, flexibility, and endurance. The studies are progressive in difficulty and take the student in moderate stages through basic warm-up procedures to exercises covering spreading intervals, expanding range, and lip trills. With the text completely reset and edited in 1980, this beautiful di...