Presenting information heretofore difficult or impossible to find in English, this work opens a window on the colorful panorama of Finnish music. The 500-plus entries present historical and modern composers, the accomplishments of hundreds of internationally acclaimed performing artists, as well as more general articles on folk music, early manuscripts and publications, cantors and hymnals, early Roman Catholic, Eastern Orthodox, and Lutheran music, leading orchestras and choral groups, festivals, and much more. No other such extensive and comprehensive work on Finnish music exists in any language other than Finnish and Swedish. This English-language dictionary makes the subject available to readers throughout the world.

In addition to the entries, chronologies of Finnish history and Finnish music, as well as a map of Finland, correlate history and locations with the entries. A general bibliography and entry-specific bibliographies offer further resources. The Dictionary interprets a sometimes limited amount of available information, describing forms and styles of compositions, operatic roles performed, the content of scholarly work, and significant and unusual events in the lives of the musicians.