Unusual Pink Floyd vinyl stumps Sound Advice

EDITOR’S NOTE: Every so often, Goldmine gets a Sound Advice question that stumps us. Here’s an example.

We’re hoping that you can help us get to the bottom of this mystery. Please send responses via e-mail to goldminemag@fwmedia.com, or via mail to Goldmine Magazine, Attention Sound Advice, 700 E. State St., Iola, WI 54990.


I have recently come across a strange record, and I am trying to get any sort of information about it that I can.

It is a quadraphonic test pressing (though some of the people that I have showed it to have said that it looks like an acetate) of excerpts from Pink Floyd’s “Dark Side of the Moon” on one side and Dvorak’s “Symphony No. 8” on the other.

The only information on the record, other than the somewhat standard “Available to technical and other authorized personnel for limited purposes of testing… 1974 Capitol Records” is handwritten or scratched into the dead wax. This is what it says written on the label:
Side 1) Pink Floyd Dark side of the Moon Excerpts, Beg. Of sides 1 and 2 of SQ LP
Side 2) Symphony # 8 and Muts (This is what it appears to say, could be ‘parts’ ?) 1 and 2 Angel 36043

This is what is etched into the dead wax:
Side 1) Capitol Test Cut, Pink Floyd, K.T. CD-4-4
Side 2) Dvorak #8, CD-4 Test: 3, DWJ

I know that ‘Dark Side of the Moon’ was never released as a Quadraphonic LP in the United States on Capitol, though they did do the 8-Track. There are no matrix numbers in the dead wax, so it would seem odd to have made this off of a plate — lending credence to it being an acetate as others have said.

Also strange to me is that the record has CD-4 in the dead wax, and SQ on the label – as they are different quadraphonic formats. Was Capitol thinking of switching to CD-4 Quad before it jumped off the Quad bandwagon?

This record came out of a large collection of quad records that I bought from a very dedicated quad collector.

Any information would be greatly appreciated. If you would like to see pictures of the labels/record I would be more than happy to send them along.
— M.S., via e-mail


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One thought on “Unusual Pink Floyd vinyl stumps Sound Advice

  1. I am wondering if it could be a discrete matrix album? CBS had the USQ (Universal SQ) system for FM broadcasting and had been working on combining CD-4 discrete discs with SQ matrix techniques. The album would play either in SQ with a 2-channel only system and SQ decoder or in full discrete quad with a CD-4 setup, thereby ending dual-inventory. Perhaps this is an example of such a test?

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