"The Canadian Music Periodical Index (CMPI) database includes nearly 30 000 entries on articles dating from the late 19th century to the present day. Approximately 500 Canadian music journals, newsletters and magazines are represented here, nearly 200 of which are currently active and continue to be indexed. The database focuses 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." -- Canadian Music Periodical Index