PROGRESSIVE ETUDES 40 FOR TROMBONE BK/OLA Bass Heads The AJ-220S has a unique

The AJ-220S has a unique bell-like shape

Preamp Tubes: 3 x 12AX7

including phono turntables and tape decks

The sound is so substantial and alive

PROGRESSIVE ETUDES 40 FOR TROMBONE BK/OLA Bass Heads The AJ-220S has a uniqueFrom one of the most prolifically published brass pedagogues of the twentieth century, Sigmund Herings 40 Progressive Etudes is recognized as an essential method, containing forty etudes that are perfect for the developing trombone or baritone player. Ideal for intermediate students, the etudes are organized in a progressive manner, challenging students as they improve. This revised edition contains MP3 recordings of all etudesperformed by John Drew,