Jon works across musical genres as a composer, arranger, and conductor from his base in Scotland. His professional portfolio over the last 10 years encompasses artistic directorships; conducting opera, standard orchestral repertoire, and new music; executive production; and composing/arranging for orchestras and singer-songwriters. He co-founded the Octandre Ensemble in 2011 with the composer Christian Mason, and was founding Co-Artistic Director of Glasgow's Nevis Ensemble until 2022. He conducts the Film Composers Lab at the RSNO.

Jon has a long-term and deep-rooted interest in musical value and meaning. He has published music analytic work, as well as collaborations in the social psychology of music, music education, and embodied music cognition. Jon teaches at the Royal Conservatoire of Scotland.

Jon’s high-end, bespoke arrangements have brought artists acclaim in Q Magazine, BBC Radio 2 Rock, Reel Magazine, and elsewhere. He has arranged, conducted, and directed strings and other orchestral backing for projects in styles from rock through acoustic singer-songwriters and trad to RnB. In the UK, recent collaborations with the composer Pippa Murphy have been performed by the BBC Concert Orchestra at the Proms and the Scottish Chamber Orchestra at Celtic Connections. Across the Atlantic, he has worked with Symphony Nova Scotia for live projects featuring RnB singer Keonté Beals and the First-Nations Mi’kmaq duo KINUK.