Leading American composer John Corigliano had reservations about writing a percussion concerto, but the challenge fascinated him. The result is Conjurer, a concerto for percussion like no other, in which 'wood, metal and skin' are utilized in such a way that the soloist, Dame Evelyn Glennie - the world's greatest percussion virtuoso - 'conjures' the musical material from these three choirs, and the orchestra then shares and develops the themes. Vocalise employs electronics in a way that serves to heighten the expressive beauty of the writing, gradually leading the listener from a purely acoustic experience to one that becomes suffused by amplification and electronics.