36 Études Transcendantes by Théo Charlier (1868-1944) is a study book for advanced level Trumpet players using a chromatic trumpet in B flat. It can also be used by Cornet or Flugelhorn players. Written with some very technical parts 36 Études Transcendantes prepares the Trumpet players with challenges through all registers while involving some interesting lyrical parts. It is a must have for any advanced Trumpet players and a classic in the Trumpet literature. Théo Charlier was a Belgium Trumpet Master who differentiates himself by preferring the sound of Trumpet to thoseof the Cornet or the Flugelhorn during a period which was more used to military music. He was the first to interpret Bach's 2nd Brandenbourg Concerto in its full in 1898 with a tailor-made piccolo-Trumpet Victor Mahillon. In addition to 36 Études Transcendantes he also composed some contest pieces and some operas.

The material in this book is presented as an introduction to the art of double and triple tonguing. The book is designed for the student who just beginning to double or triple tongue and contains enough material for at least two years work. Some students may take much more time, for the speed of progress will depend on the student's background, age and ability level. The range of this book is well within the ability level of young brass players. While this book is designed primarily for cornet, trumpet, and baritone players, it can also be used for trombone and french horn players. It can also be used with tuba players who can transpose from the treble clef.