Over a span of 44 years, the Italian composer Luciano Berio wrote fourteen pieces entitled Sequenza - a series of solo instrumental works which are dizzyingly virtuosic and experimental. Yet, unlike similarly experimental works, the Sequenzas remain at the forefront of contemporary solo instrumental repertoire. In a programme recorded at the 2010 Aldeburgh festival, Stephen Johnson is joined by Trombonist Byron Fulcher, Viola player Paul Silverthorne and Clarinettist Mark van de Wiel to explore three of these varied compositions.