Hugo Haag entered the Yehudi Menuhin School at eleven. A recent graduate of the Guildhall school of Music and Drama, he has played as a soloist, chamber and orchestral musician at numerous venues including the Wigmore Hall, the Menuhin Hall, the Fundación Juan March in Madrid, Barbican Hall and at the Church in Saanen as part of the Gstaad Menuhin festival in Switzerland. He has also participated in international academies and masterclasses such as the Saline Royale academie and the IMS Prussia Cove, with musicians such as Thomas Ades, Robert Levin, Nobuko Imai, Lars Anders Tomter, Jean Sulem, Levon Chilingirian, Krzysztof Chorzelski, HsinYun Huang, Alexander Janiczek, and Paul Coker among others.

Hugo is musical director of the annual chamber music festival in Normandy ‘Les Musiques Vagabondes’, which brings together musicians from across the globe. His viola was made in 2021 by the luthier David Munro, based on the 1741 Ex–Yehudi Menuhin Carlo Antonio Testore Viola, which Hugo played for three years.