| Nikolai Mikhailovich Ladukhin | |
| Native Name: | Николай Михайлович Ладухин |
| Native Name Lang: | ru |
| Birth Place: | St. Petersburg, Russian Empire |
| Death Place: | Moscow, Russian SFSR |
Nikolai Mikhailovich Ladukhin[1] (– September 19, 1918, Moscow) was a music theorist and composer from the Russian Empire.
He studied at the Moscow Conservatory[2] in the class of music theory with S. I. Taneyev (graduated in 1886). He taught solfeggio and harmony there (later also instrumentation; professor since 1904).
He wrote a number of compositions: Symphonic Variations for a large orchestra, the musical picture "At Twilight", piano and violin pieces, romances, choirs, children's songs for one to three voices. He was of great importance as a theoretician and teacher: the collections of solfeggio written by him for one to four voices are still used in teaching in our time. He also wrote "Experience in the Practical Study of Intervals, Scales and Rhythm", "A Concise Encyclopedia of Music Theory", "A Guide to the Practical Study of Harmony" and a collection of associated exercises.
Some of his students included Alexander Scriabin, Nikolai Medtner, Alexander Goedicke, Alexander Goldenweiser, and A.V. Nezhdanov.