Trombone Visualizer Book The Trombone Visualizer book is a book to help trombonists to see and think through the music in their mind. It can help you see the notes in your mind and excute a plan to play the notes in sequence. The book also includes definitions of terminology used, info about the physics of the trombone, uses for the visualizer, the process of making the image as well as the Trombone Visualizer and Bass Trombone Visualizer images.