511 PARTICIPANT OR PERFORMER NOTE (R)Indicators First Display constant controller ^ No information provided (VM MU) [OBSOLETE] 0 No display constant generated 1 Cast 2 Presenter (VM MU) [OBSOLETE] 3 Narrator (VM MU) [OBSOLETE] Second Undefined; contains a blank (^)Subfield Codes $a Participant or performer note (NR) $6 Linkage (NR) $8 Field link and sequence number (R)