- MARC tagging for scores: fixed field codes (Voyager 008 and Leader) | variable fields
- MARC tagging for sound recordings: fixed field codes (Voyager 008 and Leader) | Physical description (Voyager 007) | variable fields
- MARC tagging for books: fixed field codes (Voyager 008 and Leader) | variable fields
- 010 field (LCCN)
- 024 field: ISMN | UPC, EAN, and other codes
- 028 field: Publisher or distributor number (028 field) for scores | Manufacturer's number (sound recordings)
- 033 field: Date and place of capture
- Geographical area and sub-area codes for the 033 field
- 041 field: Language code for sung or spoken text and accompanying material
- 046 field: Special coded dates | EDTF validator
- 246 field: Varying form of title
- 264 field: Production, publication, distribution, and manufacture statements and copyright date
- 336-338 fields: Content, media, and carrier type
- 348 field: Format of notated music and form of musical notation
- 370, 371, 372, 373, 374, 375, and 378 fields: Name attributes
- 380 | 381 | 382 | 383 | 384: Work and expression attributes
- Commonly used music terms in the Library of Congress Genre/Form Terms (LCGFT) (380 (and 655))
- Commonly used terms in the Library of Congress Medium of Performance Terms for Music (LCMPT) (382)
- Mapping of Library of Congress subject headings (LCSH) and form subdivisions to their corresponding LCGFT and LCDGT terms (380 and 655)
- 655 Genre/form index term
- 775 field: Other edition
General
- RDA to MARC bibliographic mapping (maps RDA elements to corresponding MARC 21 bibliographic elements; in RDA Toolkit)
- RDA changes from AACR2 in MARC tag order J. McRee Elrod
- Bibframe
- Bibliographic Framework Initiative
- CMC BIBFRAME Task Force blog
- MARC to BIBFRAME: an exploration of the future of cataloging (video of a presentation at the 2015 MLA meeting)
- Filing indicators/characters
- LC documentation
- Bibliographic Framework Initiative
- RDA in MARC
- MARC 21 for authority data (100-388 fields)
- MARC 21 encoding to accommodate new RDA elements 046 and 3XX in NARs and SARs (Word document)
- MARC 21 for bibliographic data: 00X | 01X-09X | 1XX | 20X-24X | 25X-28X | 3XX | 4XX | 5XX | 6XX | 70X-75X | 76X-78X | 80X-83X | 841-88X
- Country codes: code sequence | name sequence
- Geographic codes: code sequence | name sequence
- Language codes: code sequence | name sequence
- OCLC documentation
- Authority record format
- Bibliographic formats and standards: fixed field | 0XX | 1XX | 2XX | 3XX | 4XX | 5XX | 6XX| 7XX | 8XX | 9XX