This is just excellent, it works a lot better than I thought it would. You can really drown in the song, whoa.

    aaaallllll
    myyyyyy
    paaaasssstt
    aaaaaaandd
    fuuuttuurrreeesss

I'll add that there's a lot of extremely timestretched tracks from Aphex Twin's Selected Ambient Works II on youtube as well. They all sound glorious, too