A guy named Brian Borcherdt has taken recordings by the Chipmunks and played them on a turntable that plays at 16 RPM, about one third the usual speed singles are played (and half the speed of elpees). I read about this at Slate.

Here’s a deeply disquieting (as always) My Sharona, which really kicks it when it gets to the instrumental break. https://soundcloud.com/alvin-thechipmunkson16sp/my-sharona?in=alvin-thechipmunkson16sp/sets/sludgefest

There are more tunes at the end of the Slate story.