Jonathan Harvey's Tombeau de Messiaen (1994) for Piano and CD.

'This work is a modest offering in response to the death of a great musical and spiritual presence. Messiaen was a protospectralist, that is to say, he was fascinated by the colours of the harmonic series and its distortions, and found therein a prismatic play of light. The tape part of my work is composed of piano sounds entirely tuned to harmonic series - twelve of them, one for each class of pitch. The ‘tempered’ live piano joins and distorts these series, never entirely belonging, never entirely separate.'

~ Jonathan Harvey