The Kronos, like many contemporary musicians, make free use of pre-recorded audio, the only part that, for me, was disconcerting. I don’t mind sampling because it’s clear what it is, but I found it distracting to sit there and wonder what was live and what wasn't. This is one of the things I value in—and have learned from—the visual work of Robert Irwin and Olafur Eliasson, who make a point of keeping their means obvious so that the experience is the experience, and not marred by conjecture about how it’s done. One of my companions at the concert, Gregory, suggested that the Kronos might be better off having someone behind the computer up there on the stage with them, just to acknowledge the source of the sounds. But in general I don’t love the combination of canned music with live performance (even with dance)—it reminds me too much of lip-syncing (how about those Chinese?), or the violinists in the subway whose backup orchestra is a CD in a boombox.
The Kronos Quartet playing Sigur Ros:
Sigur Ros video Gobbledigook
I neglected to bring my camera, so Gregory took these pics of Ozawa hall with his iPhone: