Year of composition
The Sonata for flute and piano, Op. 21 was composed during the spring-summer of 1979 in Barcelona. It was a piece of slow gestation since it was composed when the author was doing his required military service. The Sonata is played without interruption, but it is planned in two movements. The first movement is slow, lyric, and expressive ending with cadenza that serves as a bridge to the second fast movement. The exciting fast movement has driving rhythms, incessant meter changes and virtuosistic passages for both instruments. In the slow middle part (Sensibile), a new melody is introduced, sustained by chromatic harmony. Some elements from the first movement are recalled and the main theme comes back by flute harmonics. After a smooth bridge by the piano, the piece closes with a partial recapitulation of the part and a short but exciting Coda.