Replying to a message of Jim Adams to Glenn Meadows:

 JA> From: Jim Adams 

 JA> Reminiscent of the turntable speed wars back in the 45 days.  Had a
 JA> friend who was a DJ back in the '70s.  He was complaining of a rival
 JA> station cranking their turntables to 48 RPM in order to sound
 JA> "hotter".

More likely the reason was to get the music over with faster so they could cram
in another commercial or two.  A station in Omaha used to do this - and even
with my 'tin ear' I could tell the music wasn't quite right (pitch was too high).
There was another station that once claimed it played 30 songs in an hour; do
the math, at 2+ minutes per song it ain't possible - unless you speed up the
turntables to shorten the playing time.

--- FleetStreet 1.19+