 Weber's work focuses on an exploration of forms of writing that are constantly being renewed.Parallel to some serials works freely treated ("Variations pour dixtuor", 1965 - "Synecdoque pour hautbois", 1970), he developed a writing in quarter tones ("Saxophone Quartet", 1984 - "Constellaire", 1994).He also employed various techniques of indeterministic composition, such as certain uses of transparent sheets, which, seen from different angles, generate transformations of pre-established melodic and harmonic propositions ("Linear I, II, III", respectively for saxophone and orchestra, for octet, and for sextet of ondes Martenot, 1973–77).