Trombone in bass OR treble clef catered for: two parts included. A Musical Whos Who of the animal world. Twelve captivating pieces including Conger Reel!, Giraffe To Do It? and The Oranga Tanga! Treble & bass clef parts included.TROMBONE & PIANO, TROMBONE TC & PIANO. Pieces in book are approximately Grade: 3 - 6 standard.