The solo piano music, which ranges from miniatures for younger players to demandingly advanced works, has been recorded by various artists ( Eric Parkin, Peter Wallfisch, Margaret Fingerhut, Angela Brownridge, Stephen Hough ), as also the works for organ, which include the celebratory Paean ( 1966 ), the duet Martyrs ( op . 73 ), the Prelude, Scherzo and Passacaglia ( op . 41 ), Missa de Gloria ( op . 82 ) and an organ concerto with timpani ( op . 58, cf.