A piece of mine called Jellyrollmortonfeldmantwo is currently being featured as part of the Noise Room installation at the Cubitt Gallery in London until September 28th.
The piece is made up of 5 different recordings made by Jelly Roll Morton, 3 of them recorded to vinyl, 2 to piano rolls, all slowed down in various ways (using custom timestretch algorithms, or slowing down, or transposing to MIDI and just lowering the BPM) by a factor of about 100, so that they move at the rate of a typical Morton Feldman composition.
The Noise Room is a project by Jan Werner, and also includes pieces by Mouse on Mars, Stereolab, Sun OK Papi KO, FX Randomiz & C-Schulz, and many more.