Listen to The Seasons, Op. 37a: XII. December: Christmas online. The Seasons, Op. 37a: XII. December: Christmas is an Instrumental language song and is sung by Valery Vishnevsky. The Seasons, Op. 37a: XII. December: Christmas, from the album Tchaikovsky: The Seasons, Op. 37a - Mussorgsky: Pictures at an Exhibition, was released in the year 2017. The duration of the song is 4:19. Download Instrumental songs online from JioSaavn.