Edition Schott
...ni una sombra. Trio pour soprano, clarinette en la et piano. soprano, clarinet in A and piano. Partition d'exécution.

... ni una sombra is scored for soprano, clarinet and piano, the same trio instrumentation that has become famous by Franz Schubert's Hirt auf dem Felsen. The piece contrasts a poem by Friedrich Rückert ('O mein Stern') with a few Spanish words of the Argentine Antonio Porchia. Interludes between the six verses of the poem show the participants in different combinations each. At the beginning of the verses, the soprano and the two instruments get together in a homophonic sound, the starting point of further - extremely virtuoso - rupturing.
Instrumentation : soprano, clarinet in A and piano