Aaron has conducted more than 280 World and UK Premieres in venues such as London’s Southbank Centre, Wigmore Hall, Cafe Oto; the Britten Studio, Göteborg Concert Hall, and the Northern Lights Hall in Harpa, Reykjavik.

As the Artistic Director and conductor of Riot Ensemble, Aaron has commissioned and conducted music by many of todays’ most important composers including Clara Iannotta, Farzia Fallah, Liza Lim, Bára Gísladóttir, Alex Paxton, Laurence Osborn, Georg Friedrich Haas and Chaya Czernowin, at festivals including Darmstadt, Wien Modern, November Music, Aldeburgh, Dark Music Days and the Huddersfield Contemporary Music Festival. As well as with Riot Ensemble, he has conducted ensembles in the United States, England, Wales, Scotland, Iceland, Sweden, Finland, France, Holland and Spain.

In addition to numerous live and pre-recorded radio broadcasts, Aaron has led recording sessions in the Abbey Road, AIR Lyndhurst, and Real World Studios; Silent Zoo Studios (LA) and Deutschlandfunk Köln. He has established strong partnerships in Higher Education: he is on the composition faculty at the Royal Academy of Music where he regularly conducts the Manson Ensemble & student workshops, and he has led recordings and performances of more than 100 student works at institutions such as RNCM, Leeds University, Cardiff University, and the Guildhall School of Music & Drama.