This American quartet is all about innovation and re-invention. Performing pieces by Steve Reich, the National’s Bryce Dessner and Caroline Shaw – watch out for some very strange instruments indeed – they also present to the world the chord stick (*a brand new instrument that’s a cross between a dulcimer and an electric guitar.) And to finish the show, RNCM percussion students join the group on stage to perform a hypnotic suite of pieces by the quartet’s very own Jason Treuting, blending Reich, Brian Eno and Aphex Twin.