Entirely tangential but this is also awesome: Edit: but I'll be damned if I can get the ghostly, reverse reverby effect slowing things down with iZotrope. Maybe their algorithms are too good and fail to degrade the audio enough.
Oh, come now. That's Paulstretch, an entirely off-line algorithm. It rose to prominence when someone on Reddit discovered that Justin Bieber's "U Smile" becomes a towering 35 minute ambient masterpiece when slowed down by 8X: It was kindof a big deal Those who have seen Dredd may recognize that the majority of the movie is nothing but score run through Paulstretch on footage shot on Fantom. That movie doesn't exist without Reddit.
I remember the various superslow versions of popular songs. My favourite, the Donna Summer I Feel Real stretch, was the soundtrack to a screenplay I was working on last year. I guess Paulstretch is my man. Maybe I can compile it for Mac/Linux and fiddle.
Speaking for slow I had a lot of fun listening to reversed version of Bob Dylan's "Desolation Row". Some people in the comments were hearing a lot of different things in the lyrics.