Bertie studies with Sian Edwards at the Royal Academy of Music. He is the conductor of the London Young Sinfonia, the Percival Ensemble, and musical director of Waterperry Opera Festival. Other groups he has worked with include the Britten Sinfonia, the London Sinfonietta, Cambridge University Symphony Orchestra and Opera Society, Helios Opera, Shadwell Opera, and the National Youth Orchestra,
Bertie’s repertoire spans renaissance and baroque music to twentieth- and twenty-first-century works and his own compositions. Equally at home with opera he has recently conducted productions of Mozart's Cosi fan tutte and the world premiere of Peter Learn's Nero Monologues. He has taken part in masterclasses with artists such as Martyn Brabbins, Christophe Rousset, and Pierre-André Valade. Additionally he has been awarded the Ernest Read Prize and Sir Henry Wood Scholarship from the Royal Academy of Music and participated in the final rounds of the Deutscher Dirigentenpreis.
Bertie frequently conducts the choir of St Marylebone Parish Church, London (where he is organ scholar), and is much in demand as a conductor of other choirs and choral societies.
Bertie is always keen to learn new repertoire and forthcoming projects include Stravinsky's The Firebird at the Royal Academy, and Mozart's Don Giovanni at the Waterperry Opera Festival.