It happened last week with Steven Isserlis in Bach, and last night Alina Ibragimova sent high voltage shooting through the body with the very first gesture of Janáček’s Violin Sonata, joined in ...

That the sonatas were loud at times in the café space can’t be denied. But it would have been a mistake for performers as vivid as these to scale down: you don’t ask for a dimmer switch on the sun.