Performer: Lausanne Chamber Orchestra

Watching Ma inspire younger musicians is an extraordinary experience. Renaud Capuçon conducts an entertaining if imperfect Eroica.

They made quite a contrast on stage: the diminutive figure of violinist Alexandra Soumm, resplendent in bright pink evening dress, and the imposing black-clad bulk of conductor Peter Csaba. Both, however, are bundles of energy, which was deployed at full tilt in this performance of the Tchaikovsky violin concerto, closing the violin-laden programme of this year’s Sommets Musicaux de Gstaad.