[1] In 1984 he performed an arrangement of Stravinsky's 'Rite of Spring' made by himself and David Horne for piano duet at the Dartington Summer School.
In 1991 he gave the world premiere of Europera 3 by John Cage and toured in London, Strasbourg, Berlin and Paris with the composer.
In 2003 he gave the Russian premiere of the complete Ligeti Etudes at the St. Petersburg Soundways festival.
James Clapperton enjoyed a collaboration with the Romanian master Horațiu Rădulescu which lasted twenty years until he died in 2008.
He has also worked closely with composers such as Brian Ferneyhough, Alexander Radvilovitch, Salvatore Sciarrino, Howard Skempton and many others.