Very, very happily surprised by how good this is. I haven't done a side-by-side comparison with the ECM recording yet, but I'm thinking they're nearly identical in quality and recording style. I think, too, that I can say that I prefer it to the Nonesuch recording, which was good though a little too bright for me. I listened to it as an SACD, which may have helped with my liking it. It also has multi-channel option for surround sound. Luigi Nono's Prometeo is also recently available in surround sound on the Col Legno label, leaving me scrambling a little bit to find a nice multichannel rig to listen.
All in all, well worth picking up whether you're a long-time fan of the peice or are looking for a first exposure. I would still recommend the ECM disc over this as a rule, but – given that disc's scarcity and the quality of Grand Valley's performance - this edition is a gift.
