In 2009, I wrote a piece for unaccompanied piccolo, commissioned by the Italian player Fabio A. Colajanni. This piece is called Experiment 51, and to me it’s been a sort of “mother composition”, that gave birth to two more pieces, Experiment 52, for two alto flutes and Experiment 53, for piccolo and alto flute. These two derivative pieces share the same material with the generative piece, reassembled with various techniques. The present composition, called Experiment 52.1 is the second piece scored for alto flute and cor anglais, with more or less the same notes, but with different dynamics and a peculiar flavour, due to the combination of the two instruments.