The Getchell Book 1 Companion The GETCHELL BOOK 1 COMPANION, essentially second (duet) parts to the First Book of Practical Studies for Cornet and Trumpet by Robert Getchell (difficulty grades of 1 to 3), follows the principles found in Triplo Presss COMPANION SERIES, that being the concept of playing with students to help with conceptions of sound, style, pitch, tempo, and phrase. These 70 etudes are fun and satisfying in their own rights and can be played and studied as stand-alone works. They are most effective, however, when played as conceived: as duets to Mr. Getchells book, which is published by Belwin.