The following documents the changes contained in the twenty-second update to the 1999 edition of MARC 21 Format for Bibliographic Data.  Update No. 22 (April 2016) includes changes resulting from proposals that were considered by the MARC 21 community during January 2016.

New content designators:

Subfield codes

$r  Total number of individuals performing alongside ensembles (NR) in 382 (Medium of Performance)

$t  Total number of ensembles (NR) in 382 (Medium of Performance)

$0  Authority record control number or standard number (R) in 753 (System Details Access to Computer Files)

$2  Source of term (NR) in 753 (System Details Access to Computer Files)

Codes

n  Not applicable in Sound recording 007/03 (Speed)

n  Not applicable in Sound recording 007/10 (Kind of material)

r  Remote in Sound recording 007/01 (Specific material designation)

s  Standalone device in Electronic resource 007/01 (Specific material designation)

Changes in content designator names and definitions:

Subfield code

$e  Number of ensembles renamed Number of ensembles of the same type in 382 (Medium of Performance)

Codes

b  Chip cartridge redescribed in Electronic resource 007/01 (Specific material designation)

s  Sound recording redescribed in Sound recording 007/00 (Category of material)

Character positions

Sound redescribed in Sound recording 007/03 (Speed)

Kind of material redescribed in Sound recording 007/10 (Kind of material)

See also:

Appendix G:  Format Change Lists

Appendices