Eugene KURTZ (1923-2006). Autograph music manuscript signed, Logo. Introduction and Breakdown for clarinet and piano, 1978-1979; 42 sheets 35 x 27 cm. Piece for clarinet and piano. A first version, for clarinet, piano and percussion quartet, commissioned by Radio-France, was premiered on October 27, 1979 at the Maison de la Radio, as part of the "Perspectives du XXe siècle", during the Eugene Kurtz day, by Guy Dangain, clarinet, Michel Sendrez, piano, and the Quatuor de Percussion de Paris, conducted by Stephen Kleiman. The version for clarinet and piano (the parts being the same in both versions) was written for and dedicated to David Harman, clarinet and David Liptak, piano, who premiered it on September 7, 1980, at the Temple Buell Gallery of the University of Illinois (Urbana). The Introduction begins Calmato, con semplicità, and ends Veloce, Lustig (p. 1-23); Breakdown is marked Molto vivace, in modo mecanico. The work lasts about 16 minutes. The manuscript is carefully notated in pencil on tracing paper, with 3 or 4 systems of 3 staves per page, the piano sometimes being notated on 3 staves. The edition tracings of the 1st version for clarinet, piano and percussion quartet (122 ff. 22,5 x 32 cm) are attached. Also attached is the autograph musical manuscript of Vestigium by Stephen Robert KLEIMAN, for violin, clarinet and piano, dated "Paris, Sept. 1975" (53 ff in pencil on tracing 35,5 x 27 cm).