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MARC DISCUSSION PAPER NO. 2020-DP03

DATE: December 20, 2019
REVISED:

NAME: Defining New Subfields in Field 340 to Record Illustrative Content and Sound Content in the MARC 21 Bibliographic Format

SOURCE: Network Development and MARC Standards Office (NDMSO), Library of Congress

SUMMARY: This paper proposes adding new repeatable subfields to Field 340 (Physical Medium) in the MARC21 Bibliographic Format to record the illustrative content and sound content of resources.

KEYWORDS: Field 340 (BD); Physical Medium (BD); Illustrative Content (BD); Sound Content (BD)

RELATED: 2017-05

STATUS/COMMENTS:
12/20/19 – Made available to the MARC community for discussion.

01/26/20 – Results of MARC Advisory Committee discussion: There was broad support for recording illustrative content and sound content using URIs and controlled terms; the use case described within the paper clearly indicates a need. However, there were questions about whether concepts of content and carrier were being mixed, and thus whether field 340 (Physical Medium) would be the proper place to encode information about content. A proposal would need to make the differentiation clear. Based on the discussion around 2020-DP02, MAC encouraged NDMSO to consider following the model of the current 33X fields for sound and illustrative content, combining terms and codes from defined vocabularies. NDMSO will work with OLAC, and possibly with the Music Library Association and the Visual Resources Association, to bring this paper back as a proposal.


Discussion Paper No. 2020-DP03: Defining New Subfields in Field 340 to Record Illustrative Content and Sound Content

1. BACKGROUND

Field 340 is currently defined in the Bibliographic format as follows:

In MARC Proposal No. 2017-05, a subfield to record color content was added to this tag on the basis that RDA 7.17 defined color content as a separate element and provided a controlled vocabulary to use. The proposal also enhanced the definition and scope of field 340.

Similarly, RDA 7.15 defines Illustrative Content and 7.18 as Sound Content. The instructions for recording both of these elements include controlled vocabulary terms which can be used and assigned URIs, and it encourages use of the terms in a linked data environment. E.g. Illustrative Content: illustrations, portraits, maps; Sound Content: sound, silent.

These elements also fall under the definition and scope of field 340 as both Illustrative Content and Sound Content provide more granular description information of an item’s material properties, and Sound Content provides information that requires technical equipment for its use.

2. DISCUSSION

Illustrative content information is currently recorded in field 300 (Physical Description) $b (Other physical details) and field 008/18-21 (Books). Sound content information is recorded in field 300 (Physical Description) $b (Other physical details) and field 007/05 (Electronic resource, Projected graphic, Motion picture, Videorecording).

The OLAC Best Practices for Cataloging DVD/Blu-ray – Version 1.1, also adds that notes can be added to a description to explain or clarify the details of the sound content. For example:

300 ## $a 1 videodisc : $b sound, color
500 ## $a Silent film with added theatre organ musical accompaniment.

Since RDA defines Illustrative Content and Sound Content as separate elements, we propose creating distinct subfields for each element -- $p for Illustrative Content and $q for Sound Content.

It could be argued that field 344 (Sound Characteristics) is a logical location for the Sound content element, but it was decided to propose placing the information in field 340 as field 344 is highly oriented to sound recordings.

Storing this information in field 340 will also facilitate data conversion between MARC and BIBFRAME as the standard identifier or URI of the Illustrative Content or Sound Content term can be retained along with the term’s label.

3. PROPOSED CHANGES

In Field 340 (Physical Medium) of the MARC Bibliographic format, define the following subfields:

$p – Illustrative content (R)
Presence of types of illustrations in the content of a resource.

$q – Sound content (R)
Indicates whether the production of sound is an integral part of a resource.

4. EXAMPLES

340 ## $p photographs $0 http://id.loc.gov/vocabulary/millus/pht

340 ## $p portrait $0 http://rdaregistry.info/termList/IllusContent/1012

340 ## $g color $p illustrations

340 ## $g one color $p maps

340 ## $a polyester $g black and white $o positive $q silent
            [If URIs are included, the above example could be represented as follows:]
340 ## $a polyester $0 http://rdaregistry.info/termList/RDAMaterial/1030 $2 rdamat
340 ## $g black and white $0 http://id.loc.gov/vocabulary/mcolor/blw
340 ## $o positive $0 http://id.loc.gov/vocabulary/mpolarity/pos
340 ## $q silent $0 http://rdaregistry.info/termList/soundCont/1002 $2 rdasco

A note could be added in field 500 to provide additional context:
340 ## $q sound $0 http://id.loc.gov/vocabulary/msoundcontent/sound
500 ## $a Silent film with added orchestral accompaniment.

Field 340 could be used in combination with field 300 $b:
300 ## $a 1 poster : $b color illustrations ; $c
340 ## $g color $p illustrations

5. BIBFRAME DISCUSSION

BIBFRAME Work or Instance: bf:illustrativeContent (property), bf:IllustrativeContent (class), accommodating either a designation of the illustrative content as a URI from a list or as a literal. The current MARC-to-BIBFRAME data conversion generates illustrative content triples from MARC 008/18-21 (books).

BIBFRAME Work or Instance: bf:soundContent (property), bf:SoundContent (class), accommodating either a designation of the sound content as a URI from a list or as a literal. The current MARC-to-BIBFRAME data conversion generates sound content triples from MARC 007/05 (electronic resource, projected graphic, motion picture, videorecording).

Using field 340 to record this information will facilitate the conversion of data between BIBFRAME and MARC as the URIs will be preserved.

6. QUESTIONS FOR DISCUSSION

6.1. Do you agree there is a use for subfields in field 340 to record Illustrative content and Sound content?

6.2. Does the proposed solution meet the needs discussed?

6.3. Are there any potential consequences that this paper does not address?

6.4. Should Sound Content be placed in field 344 (Sound Characteristics) instead? For reference, field 344 is "Sound Characteristics. Technical specifications relating to the encoding of sound in a resource" and separate subfields are defined for "type of recording, recording medium, playing speed, groove characteristic, track configuration, tape configuration, configuration of playback channels, and special playback characteristics."


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