Why is "Kullervo (Sibelius)" trending?

Wikipedia Overview

Kullervo, Op. 7, is a five-movement symphonic work for soprano, baritone, male choir, and orchestra written from 1891 to 1892 by the Finnish composer Jean Sibelius. Movements I, II, and IV are instrumental, whereas III and V feature sung text from Runos XXXV–VI of the Kalevala, Finland's national epic. The piece tells the story of the tragic hero Kullervo, with each movement depicting an episode from his ill-fated life: first, an introduction that establishes the psychology of the titular character; second, a haunting "lullaby with variations" that portrays his unhappy childhood; third, a dramatic dialogue between soloists and chorus in which the hero unknowingly seduces his long-lost sister; fourth, a lively scherzo in which Kullervo seeks redemption on the battlefield; and fifth, a funereal choral finale in which he returns to the spot of his incestuous crime and, guilt-ridden, takes his life by falling on his sword.