Music publisher numbers are those found on printed music editions--they
don't apply to sound recordings.

Issue numbers (in the 028 sense) are the sound recording label name and
number, e.g., Fiddling Cricket Music FCM-001.

Matrix numbers apply only to mass produced discs.  They are the number
stamped in the outgroove of the recording.  Those who collect and catalog
78 rpm recordings care very much about them because they identify the
exact pressing and take of the performance.

These three numbers are all from MARC 028.

The UPC codes you find on CD's etc. would be encoded as type "upc"  In
MARC these UPC's are encoded in field 024.

Dick Thaxter

On Fri, 12 Mar 2004, Andrew E Switala wrote:

> Hi list,
> There are several recommended identifier types that specifically apply
> to music, but I don't know how to tell them apart.  These are "music
> publisher," "matrix number," and "issue number."  Is there any way to
> tell, just looking at a code printed on a disc/sleeve/jewel case insert,
> what the type attribute should be?  The examples for field 028 on the
> LoC site don't clarify things for me.
> Also, does anyone know of a reference (online or print) for
> obsolete/historical publication or product codes?  Sometimes I come
> across identifiers on older books (e.g. "0076-668-6016" on a Japanese
> publication from 1978), and I don't know whether they derive from some
> disused national or local standard, which I could use as the type
> attribute, or from the publisher, for which I'd use "stock number" as
> the type attribute.
> --Andy

*    Dick Thaxter  [log in to unmask] 202 707-7208                   *
*    Automation Specialist                                     *
*    Motion Picture, Broadcasting & Recorded Sound Division    *
*    Library of Congress                                       *
*                             The usual disclaimers apply      *