Glad i stopped into the basement and found this thread! I never come down here, but thought what the hell... And found this awesome thread!
I am a big fan of chill/ambient music and was very happy to see Boards of Canada get their proper respect here. I still have to go back and check out all the suggestions everyone's posted, but I'd also like to make one recommendation of my own: Tortoise. They're an instrumental band, and are easily one of my favorites ever. I'd recommend starting with either TNT or Millions Now Living Will Never Die. "Millions" was my first album of theirs and it changed my life. I never knew music could be like *that*! TNT is such a great album too, it's hard to recommend one and not the other. I look forward to checking out everyone's suggestions here, and hopefully some of you will enjoy Tortoise! I'm sure i could recommend quite a few more artists, but I'll hold off until in familiar with what else has already been shared. A tip of the hat to labnip for starting this thread!
Links for above Tortoise albums:
Millions Now Living Will Never Die:
TNT: