The Finnish musicologistFabian Dahlström [fi] does not, in his authoritative supplementary JS numbering system, provide The Building of the Boat, Marjatta, and The Raven with catalogue designations. This is in contrast to Sibelius's most notorious abandoned project, the Eighth Symphony (mid 1920s–c. late 1930s–1945), which Dahlström labels JS 190. Dahlström finalized his list in 2003 with the publication of Jean Sibelius: A Thematic Bibliographic Index of His Works. It runs from JS 1 to 225 and includes not only compositions Sibelius demoted from his opus list but also those that never held an opus number at any point during his career.
A third Swedish-language opera is The Junker's Guardian (Junkerns förmyndare), written in 1853 by the Finnish composer Axel Gabriel Ingelius [fi]. However, it was never performed and only partially survives. Finally, in 1887, Fredrik Pacius composed his final opera, Loreley (Die Loreley), to a German-language libretto.[8]