Roger Montgomery studied at the University of York and at the Guildhall School of Music and Drama with Anthony Halstead. Interested in contemporary music and period instrument performance he plays horn with many of the leading groups in both fields, and is a member of the Orchestra of the Royal Opera House as well as Principal Horn of the Orchestra of the Age of Enlightenment. He regularly plays guest principal with many of the London orchestras.

As a soloist he has regularly performed the standard solo repertoire by Mozart, Haydn and Britten in the UK, Europe and Australia, also performing Weber’s Concertino on natural horn live on Finnish Radio and  giving the 1st solo part in Schumann’s Konzertstück in London, Dublin, Paris, Ljubljana and the Lincoln Center, as well as recording the work for Deutsche Grammophon. His recording of the Mozart Horn Concertos with the OAE was selected as Best Period Instrument Performance by BBC Radio 3's Building a Library.

As a founder member and conductor of Jane's Minstrels he has given many premieres and performed at leading festivals in the UK and in the USA, Scandinavia and Europe, directing four compact disc recordings for the NMC label among others and frequently broadcasting for the BBC. He has also directed Avanti!, BBC Singers, Endymion, Capricorn, Esbjerg Ensemble, Park Lane Group Ensemble, Conchord, and Ondine Ensemble. With New Music Players, he has directed many performances including Ligeti's Aventures and Nouvelles Aventures, two film scores by Ed Hughes to Eisenstein’s Battleship Potemkin and Strike and the premiere and recording of James Wood's Crying Bird, Echoing Star. Roger teaches at The Royal College of Music, The Guildhall School of Music and Drama and the Royal Academy of Music and was Chair of the Executive Committee of the British Horn Society from 2009-12. His arrangements have been recorded for film by the OAE and performed at London's Southbank Centre.