At school, he discovered and fell in love with the music of Stravinsky, Bartok and the second Viennese School, which led him from his previous diet of the Classical and Romantic to the modernists of the second half of the 20th century. At Sheffield University, he was a founding member of the free-improvisation group AMG, and produced a portfolio of compositions towards his BMus. Bewildered, bemused and bewitched by contemporary giants such as Stockhausen, Cage, and Boulez (and later by Ligeti and Xenakis), Marcus has tried, not always successfully, to build on the undoubted influence they have had on him, while forging a style of his own. Many of his works are miniatures for solo instruments or small ensembles, such as the trombone quartet Carreaux (which won a second prize in the British Trombone Society’s composition competition 2008 and was premiered by the Black Dyke Trombone Quartet), but he has also written some more extended works for larger forces — including a set of Preludes for orchestra, and a Percussion Quartet — and is currently working on a massive piece for trombones and strings in homage to Iannis Xenakis, amongst other things.
Marcus also enjoys composing for less "serious" line-ups: he has written several pieces for the ska/funk group Mad Hatters, and every so often produces a jazz composition for whatever band he happens to be playing in. A long-cherished ambition is to form an "avant garde big band" to perform some of his compositions and arrangements. Watch this space.
As well as writing original compositions, Marcus does a fair amount of arranging, mainly for bands which he is associated with in one way or another. These arrangements range from jazz quartets and quintets through to full-sized big bands, and are tailored to suit not only the forces but also the abilities available. They are sometimes commissioned by the bands, sometimes just at the whim of the arranger, and include new takes on old standard tunes, big band arrangements of jazz and rock classics (including a set of Lennon and McCartney tunes for the annual "Beatles Day" charity fund-raiser in Hastings), and tributes to some of the great jazz composers.
A recently-composed short piece for solo clarinet: