One of the most prolifically published brass pedagogues of the twentieth century, Sigmund Herrings 40 Progressive Etudes is recognized as a standard publication with forty etudes that are perfect for the developing trombone or baritone player. Ideal for intermediate students, each etude is written in a progressive manner to challenge students as they improve. This revised edition contains MP3 recordings of every etude performed by John Drew, Professor of Trombone at Florida State University.