The CMPI database includes over 37 000 entries on articles dating from the late-19th century to the present day. 630 Canadian music journals, newsletters and magazines are represented here, almost 200 of which are currently active and continue to be indexed. The CMPI database focusses on articles and news items touching various aspects of musical activity in Canada. In addition, since 1999, significant articles on international music and musicians, published in Canadian periodicals, have been added to the index.