The Isabella Scelsi Foundation promotes the production of contemporary music in a wide-ranging and structured manner, with particular attention to the work of it's founder, Giacinto Scelsi. In this vein, the Scelsi Collection series has been created, in close collaboration with the Stradivarius label, which features the Maestro's works performed by great musicians and renowned vocal and instrumental ensembles. The CD we present here is the most extraordinary that one can imagine, in the true sense of the word: in fact, it documents and bears witness to Giacinto Scelsi's unique creative process. The project, conceived under the presidency of Prof. Irmela Heimbächer and edited by composer and musicologist Friedrich Jaecker, presents the heart of Scelsi's universe, with two recordings of the composer's improvisations, which generated the pieces that would take shape in the subsequent process of 'materialization', alongside the relative 'musical products', with performances of the highest caliber. Giacinto Scelsi's 'mystery' is thus, for once, unveiled, along it's innermost path! The CD is a unique accomplishment, created as an example, in order to allow everyone - musicians, scholars, and enthusiasts - to have an insight into the extraordinary epiphany that was renewed in Scelsi with each of his pieces and gave rise to works considered among the greatest masterpieces of late 20th-century music. Gianni Trovalusci President, Isabella Scelsi Foundation