Sveriges Medeltida Ballader (SMB) is a scholarly edition which compiles, in principle, all of the known Swedish medieval (traditional) ballads in existence, including those from Swedish-speaking parts of Finland.
[1] The collection was published between 1983 and 2001 by the Svenskt visarkiv, and edited by Bengt R. Jonsson [sv], Margareta Jersild [sv] and Sven-Bertil Jansson.
[2] Not only that, the SMB numbers were assigned in the order of ascending TSB type numbers, i.e., SMB 1 was assigned to TSB A 4, ending with SMB 260 assigned to F 75, at the point in time when 260 ballad types were recognized in the collection.
[3] But 263 types were given in the final count when the 5th volume was published 2001.
[1][2][3] Another feature of SMB is that the accompanying melodies have been comprehensively printed alongside the text,[1] unlike ballad collections in some of the other languages.