Besides the above, Tchaikovsky revised the overture, Romeo and Juliet.
1880-1881
1. Serenade for string orchestra, in four movements. Dedicated to Carl Albrecht. First performance January 16th (28th), under the direction of Erdmannsdörfer. Published by Jurgenson.
2. Op. 49. The Year 1812, festival overture for full orchestra. Composed for the consecration of the Cathedral of the Saviour, Moscow. Jurgenson.
Besides the above, an attempt to harmonise the Vesper Service and the first sketch of the opera, Mazeppa.
1881-1882
1. Op. 50. Trio for pianoforte, violin, and violoncello. Dedicated to the memory of a great artist (N. G. Rubinstein). The variation theme of the second movement is a reminiscence of an excursion made in company with Nicholas Rubinstein, and other colleagues from the Moscow Conservatoire, shortly after the first performance of Sniegourochka (The Snow Maiden), in the spring of 1873. The Trio was played for the first time in public on October 18th (30th), 1882, by Taneiev, Grijimaly, and Fitzenhagen. Published by Jurgenson.
2. An attempt to harmonise Divine Service. Setting for mixed chorus. Seventeen numbers. Jurgenson.
From June to October Tchaikovsky was occupied in editing the works of Bortniansky.
During this year he began the sketch of the opera, Mazeppa. By the middle of July two acts were completed.