Wohlfahrt's Op. 45 studies have been essentials in the libraries of many great teachers for years. Studies address string crossing, bow-strokes, shifting and finger-patterns. This edition for solo viola is transcribed and edited by Joseph Vieland. Published by the International Music Company. Difficulty: A3/A4 NOTE: This item is for VIOLA, and is Book 1 only, containing etudes 1 through 30. Studies 31 through 60 can be found in Book 2.