Claudio SANTORO (1919-1989). Autograph music manuscript signed, 3 abstrações para orquestra de cordas, 1966; 12 sheets approx. 45.5 x 31 cm (some cuts for clichage). Spectacularly graphic orchestral score of this work for strings, premiered in Rio in 1968 by the Brazilian Symphony Orchestra. It has 108 bars. The manuscript, written in Indian ink on large tracing paper, is dated at the beginning "Berlin Nov. 1966", and signed at the end and dated "Berlin 7/XII/966".