Listing at The Lied and Art Song Texts Page with summary of vocal works including some lyrics or translations.

Summary of life and works with internal links to related people from the Classical Composers Database.

Curricum vitae in English and Finnsh, photograph, and links from the Finnish Music Information Centre.

Short filmography from the Internet Movie Database linked to his film credits.

Brief biographical sketch summarizing influences, works, and teaching with Naxos discography.

Detailed biography by Erkki Salmenhaara for Fennica Gehrman music publisher. Includes photograph and details on relationship with Sibelius, and his symphonies, operas, and choral works.

Biography noting studies, influences, style, major works, and other activities from the Grove Concise Dictionary of Music entry at WQXR radio.