The concerto form is well represented in James MacMillan's output. So far, he has written three for piano, two for percussion and one each for violin, viola, cello, trumpet, oboe and clarinet. There is also threaded through his output a series of concertante works, such as A Deep but Dazzling Darkness, for violin, ensemble and tape (2003), A Scotch Bestiary, for organ and orchestra (2004) and the concertino Seraph, for trumpet and strings (2010). All share a common concern to realise fully the soloist's expressive potential.