17. Boards of Canada, 'Tomorrow's Harvest'
The long-brewing fourth album by the revered, elusive Scottish duo is to '70s ambient prog rock (see Tangerine Dream, etc.) what Daft Punk's Random Access Memories is to '70s disco: a loving, evocative nostalgia trip decidedly framed by 21st century technology. Full of glittery analog textures and looping melody fragments, it's like watching the movements in a murky fish tank, flashes of beauty fighting their way through the gunk, and more moving for it.