Bernard Gregoire wrote:

>Almost parallel with Blumlein's claims was a notable series of experiments
>done by Western Electric/Bell Laboratories in conjunction with Leopold
>Stokowski and the Philadelphia Orchestra in about 1927.  ...  LP
>reproduction of these experimental recordings were made available for a
>short time in the early '80s by the Telephone Pioneers of America (retired
>Bell Labs people.) I do not know of any current source for this material.
>...

The Bell Labs recordings were made in 1932.  They were made during live
concerts.  I have the LPs and have CD copies available.  You really have
to hear the Ride of the Valkyurie when it "splits" into stereo at the
close.  If you are interested you can contact me at my email address.

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