35, is a four-movement orchestral composition by the Finnish composer Leevi Madetoja, who wrote the piece from 1916–18 immediately following the success of his First Symphony (1916).

Composed during the Finnish Civil War, the Second stands as "the most significant musical document" of the conflict and finds its composer, "deeply scarred by the experience", reflecting upon national tragedy and personal loss (his brother, Yrjö, and close friend, Toivo Kuula, both perished during the hostilities).

The critics received the premiere enthusiastically and, thus, the new piece firmly established Madetoja as the vanguard of Finnish music.

On 9 April, Red Guards captured Yrjö Madetoja, Leevi's only surviving sibling, in Viipuri, where he was executed along with other officials.

Death, that cruel companion of war and persecution, has not therefore spared us either; it has come to visit us, to snatch one of us as its victim.

Oh when will we see the day when the forces of hatred vanish from the world and the good spirits of peace can return to heal the wounds inflicted by suffering and misery?A month later during May Day celebrations, Kuula got into an altercation with a group of White Army officers and, in the heat of the moment, was shot to death, dying on 18 May.