Sergei Lyapunov

There he attended the grammar school along with classes of the newly formed local branch of the Russian Musical Society.

Balakirev, who had himself been born and bred in Nizhny Novgorod, took Lyapunov under his wing, and oversaw his early compositions as closely as he had done with the members of his circle during the 1860s, now known as The Five.

[1] In 1893, the Imperial Geographical Society commissioned Lyapunov, along with Balakirev and Anatoly Lyadov, to gather folksongs from the regions of Vologda, Vyatka (now Kirov) and Kostroma.

After the Revolution, he emigrated to Paris in 1923 and directed a school of music for Russian émigrés, but died of a heart attack the following year.

For many years the official Soviet line was that Lyapunov had died during a concert tour of Paris, no acknowledgement being made of his voluntary exile.

This set completed the cycle of the 24 major and minor keys that Franz Liszt had started with his own Transcendental Études but had left unfinished.

Conductor Hans Winderstein (far left), Sergei Lyapunov, pianist Ricardo Viñes (standing) and publisher Julius Heinrich Zimmermann (far right) in Leipzig in 1907.
Lyapunov recording for the Welte-Mignon reproducing piano in St. Petersburg or Moscow in January 1910.
Lyapunov's grave in Paris.