Russian composer and conductor of Ukrainian extraction (b. 16/28 October 1751 in Glukhov [now Hlukhiv]; d. 28 September/10 October 1825 in Saint Petersburg), born Dmitry Stepanovich Bortnyansky (Дмитрий Степанович Бортнянский), also known as Dmitro Bortnyansky.
In 1881, Tchaikovsky was asked by his publisher Jurgenson to edit and make solo piano arrangements of Bortnyansky's Complete Church Music, which was published in ten volumes between December 1881 and February 1883. Tchaikovsky found the task uninspiring. "I am editing Bortnyansky's Complete Works for an edition undertaken by Jurgenson", he wrote to Adolph Brodsky in April 1882. "Since the generous Pyotr Ivanovich is paying me magnificently for my editorial work, I shouldn't be complaining, but Bortnyansky's works are so poor in content, there are so many of them and so monotonous are they, that from time to time I sink into profound despair!"