The music for today is...well, it's this playlist. It's my carefully curated list of background noise, ideal for working. I've kept vocals to a minimum and it's all ambient but not necessarily peaceful. Give it a try if you can. The embedded playlist here only contains 200 tracks but the full version contains exactly 1000.
Oct 20, 2015 update: the full playlist is now more than 6,000 items. I've expanded its scope to be slightly more active and noticeably darker, so it keeps the music interesting without becoming intrusive. Well, it might be volatile at times. That's to remind you to take a break.