She became increasingly in-demand, lending her violin playing to the likes of Rufus Wainwright, KT Tunstall, Paul Weller, Killing joke and Theodore Bikel. Solomon teaches klezmer music all over the world, most recently at the School of Oriental and African Studies (University of London), the Royal Academy of Music and Weimar Conservatoire. She is on the artistic advisory committee of the Genius of the Violin festival, the only such event in the world devoted entirely to the instrument. In February 2006 she appeared alongside Roby Lakatos, Nikolaj Znaider and Mark O'Connor in the Genius of the Violin concert at the Barbican Hall with the London Symphony Orchestra, performing special orchestrations of her own compositions. Martha Wainwright made an appearance as Sophie's special guest at this concert singing Lazarus.