Nicholas is frequently invited to guest lead viola sections throughout the country, and has appeared as such with the Philharmonia Orchestra, City of Birmingham Symphony, Royal Liverpool Philharmonic, BBC Philharmonic, Bournemouth Symphony, Royal Scottish National and Royal Philharmonic Orchestras, BBC National Orchestra of Wales and City of London Sinfonia.
Concerto performances include Mozart's Sinfonia Concertante with Zsolt-Tihamer Visontay and the Philharmonia Orchestra, and Penderecki's Viola Concerto with Boston Modern Orchestra Project. As a chamber musician Nicholas often takes time out to play with friends at festivals around the UK and Europe and has performed at the major London chamber venues. He composes as a hobby, and as conductor co-directs the Reuleaux Ensemble. He is a new father to his perfect daughter Leora and is a cat person.