Thomas Ades' Darknesse Visible for piano solo (1992) is a 7-minute explosion of John Dowland's lute song In Darknesse Let Me Dwell (1610). No notes have been added, indeed, some have been removed. Patterns latent in the original have been isolated and regrouped, with the aim of illuminating the song from within, as if during the course of a performance.
Ades transforms the piano into an instrument that's alchemically capable of sustaining a continuous line of melody, the technique of ceaseless tremolo that he demands of the player conjures a ghostly shimmer from the instrument.