Un répertoire pour un clavier de deux touches. Théorie, notation et application musicale

The desire to play on one or a few keys of a keyboard, works for orchestra or chamber music which are far beyond the gestural capabilities of a pianist with his both hands is at the origin of this theory and its application in music. The study of a two-switch device driving a data file shows all the ways to trigger, maintain, halt an event, to synchronize it with another, or to have it overlap others. A symbol defines the behavior of each event during the maneuver of the switches. This coding system is applied to notes of a musical score in order to establish structural links between their pitches exclusively. One or two keys are sufficient to drive this structure and to interpret it by giving the rhythm, the tempo, the legato or staccato, the dynamics, and finally the expression. MOTS-CLÉS : touche, clavier, codage, partition, analyse musicale, marques d’expression, répertoire, musique classique, quatuor, interprétation, legato, staccato, recouvrement.