Suitable for both advanced saxophonists and advanced oboists, Ferdinand Capelle, who was a professor at the Lille Conservatoire, compiles twenty large-scale studies based on the styles of composers, Sivori, Charpentier, Rode and Fiorillo.

The first volume of Twenty Big Studies contains the first ten studies. Each one is composed with variations in ornamentations, articulation, rhythm, phrasing, intervals, range, key signature, time signature, performance directions, tempo and dynamics, among other aspects. For all advanced saxophonists and oboists seeking to improve their technique to a high standard, Twenty Big Studies is essential to ensure progression.