# - Undefined
Source of code
# - MARC musical composition code
7 - Source specified in subfield $2
|$a - Form of musical composition code (R)
$2 - Source of code (NR)
|$8 - Field link and sequence number (R)
Codes that indicate the form of musical composition of printed and manuscript music and musical sound recordings when character positions 18 and 19 (Form of composition) of field 008 (Fixed-Length Data Elements) for music contains the code mu for multiple forms or for non-MARC codes. MARC codes are listed under field 008 Music, /18-19 (Form of composition).
Individual codes are given in field 047 in separate $a subfields. Codes are recorded in order of importance to the item being described. The code for the most important form of composition is given first.
[Oratorios and Cantatas.]
[Title is Paul Jacobs plays blues, ballad and rags.]
|047||#7$argg$2[code for controlled list]|
|047||#7$ahum$2[code for controlled list]|