Monday, November 13th: The
Nonesuch Store is having a one-day 50% off sale--everything in the store--with the promo code "THANKS." I don't know that there's anything available in surround--
maybe a DVD or two?--but lots of artists and composers there, both pop & classical, that QQ'ers are interested in.
http://store.nonesuch.com/
Edit/addendum: the site must be getting hammered, as it's been really wonky all morning. But if you manage to get through, you'll find at least a few dozen hi-res (96/24 or 88.1/24) FLAC stereo downloads, including albums by Kronos Quartet, John Adams, Steve Reich, Robert Plant, Fleet Foxes, Rhiannon Giddens, Randy Newman, k.d. lang, Pat Metheny...
http://store.nonesuch.com/music.html?cat=48194&limit=all