Composed by Ferdinand Capelle this Vingt Grandes Études for Clarinet were written after Sivori A Charpentier Rode Fiorillo and M. Vieux. Quite difficult they would help advanced players to master their technique and abilities and to build on the knowledge they already acquired. Each study lasts between one and two pages and they all have the approximate same level of difficulty. The book features an index table with a reference to Sivori A Charpentier Rode Fiorillo and M. Vieux to use as a guide.