«The work, which was supported by the Consejo Nacional para la Cultura y las Artes in Mexico, constitutes the starting point of a project I began in 2005. The basic idea is to compose different “books” for the musical instruments of the Western tradition, where technical virtuosity is used as a fundamental means of expression. The project intents to alternate pieces for solo instruments (odd numbers) with pieces where a main instrument is accompanied by other instruments (even numbers). So far I have written two books, whose titles are oneiric or fantastic. The first book consists of four short pieces, each written for a different instrument, but played by a single performer. The materials exposed at the beginning of the work are constantly transformed in the following pieces, almost to the point of being unrecognisable, especially between adjacent movements; this first book contains material that will be reused in the other books with odd numbers».