Fans of Karita Mattila might want to listen to the 15 year old recording of Sibelius' "Kullervo" with the Goteborg Symphony under Neeme Jarvi. Mattila does a fine job in the role of the sister, while Jorma Hynninen is (as one might expect) excellent in the title role. Mattila was in her mid-20s when this receording was made, so I assume it is one of her earliest recordings.
Thanks for this message as well! Yes, Kullervo is one of Karita's very first recordings, made in September, 1985 (that's about 19,5 years ago) There are 2 issues of the recording, one on BIS and one on Musical Heritage Society. You can see the details on the Discography page (http://lakarita.bravehost.com/discography.html)