Gérard MASSIAS (born 1933). 2 autograph music manuscripts. Entropy for 12 solo instruments, 2 string quintets and double bass. 25 sheets 27.5 x 35 cm, plus 2 p. of typed notes and a L.A.S. The manuscript is written in Indian ink on tracing paper (traces of scotch tape); the element "Combat" is missing. Random work, allowing the interpretation of various elements: Premises, Statism, Alchemy, Passage, Action, etc. Tjurunga II for soprano and actor, on phrases by Antonin Artaud, and percussion instruments played by both performers. 9 sheets 37 x 27.5 cm. The manuscript, very visual, is calligraphed in Indian ink on tracing paper. 5 pages in-4 of autograph notes are attached.