International Standard Music Number

International Standard Music Number (ISMN) defined by ISO 10957.

• http://www.ismn-international.org/whatis.html

• As of 2008-01-01 the ISMN consists of 13 digits starting with 979-0
• Existing 10-digit ISMNs are prefixed by 979-
• The leading M- of the 10-digit ISMNs will be replaced by 0- (zero)
• The resulting 13-digit number will be identical with the EAN-13 number that is currently encoded in the bar code