This national epic of Finland, based on ancient heroic poetry, was a rallying flag for national aspirations as Finland struggled to break away from Russia in the 19th century. So important is this great literary monument that Finland celebrates February 28 as Kalevala day. Incorporating incantation and humor and including a role for magic, this classic informs some of Sibelius' greatest music. 1999 marks the 150th anniversary of the first edition of the poem.  (SCN14, $15.95)