Scottish Ensemble, RSAMD, Glasgow

There is a moment during the Adagio from Mozart's Duo for Violin and Viola when Jonathan Morton and Catherine Marwood play, simultaneously, one sustained note that encapsulates a magnificent transformation. All the vibrations of the string intensify, producing a tangle of resonant echoes, and a rather abstractly posed sound suddenly becomes a musical gesture, and all the latent strength in the performers' bodies is awakened and distilled in a unifying action.