Tchaikovsky began work on his Symphony No.4 in F minor in the early part of 1877, about the time he began his relationship with his long-term benefactor Nadezhda von Meck. The bulk of the composition was completed by the May of that year, although Tchaikovsky’s hastily arranged marriage in the following July to Antonina Miliukova put further work on hold for a while. He returned to working on the symphony in the latter half of the same year, agonising over the orchestration of the much meatier first movement, yet finding the following movements less taxing. The Finale itself erupts with a fortissimo explosion before giving way to the Russian folk song, The Little Birch Tree, which offers much of the thematic material for the movement, until the return of the 'fate' theme from the opening of the symphony itself, which acts as a distrurbing presence amongst the more carnival atmosphere of an otherwise buoyant Finale.