Ehnes began violin studies at the age of five, became a protégé of the noted Canadian violinist Francis Chaplin aged nine, and made his orchestra debut with Orchestra Symphonique de Montréal aged 13. He continued his studies with Sally Thomas at the Meadowmount School of Music and The Juilliard School, winning the Peter Mennin Prize for Outstanding Achievement and Leadership in Music upon his graduation in 1997. He is a Fellow of the Royal Society of Canada and in 2010 was appointed a Member of the Order of Canada. Ehnes was awarded the 2017 Royal Philharmonic Society Award in the Instrumentalist category.
A violinist in a class of his own.
Recent orchestral highlights include the MET Orchestra at Carnegie Hall with Noseda, Gewandhausorchester Leipzig with Shelley, San Francisco Symphony with Janowski, Frankfurt Radio Symphony with Orozco-Estrada, London Symphony with Harding, and Munich Philharmonic with van Zweden, as well as his debut with the London Philharmonic Orchestra at the Lincoln Center in spring 2019. In 2019/20, Ehnes is Artist in Residence with the Dallas Symphony Orchestra, which includes performances of the Elgar Concerto with Luisi, a play/direct programme leg by Ehnes, and a chamber music programme. In 2017, Ehnes premiered the Aaron-Jay Kernis Violin Concerto with the Toronto, Seattle and Dallas Symphony Orchestras, and gave further performances of the piece with the Deutsches Symphonie-Orchester and Melbourne Symphony Orchestra.