A string quartet, dressed in black tie, seated in an arc that curves away from the viewer, play part of Tchaikovsky's String Quartet No. 2 in F major Op. 22. The piece is titled Andante ma non Tanto (which, crudely translated, means faster, but not too much). They sit in the sumptuous surroundings of the Crush Room at the Royal Opera House, London. Above them suspended by wires, which flick... see more