His biography is available in Russian on the Russian 'side' of Wikipedia
https://ru.wikipedia.org/wiki/Чернов,_Михаил_МихайловичIf anyone badly needs it, I can knock out a quick English tranlation of that page. In essence, his biography was study at the Physics & Maths faculty of SPbniv until 1903. Subseqently studied composition and orchestration at the SPb Conservatoire with RImsky-Korsakov and Lyadov. From 1910 until his death in 1938 he himself taught the same two topics at the SPb Conservatoire (where his pupils included Mravinsky).
His output appears to have covered a number of gences, including 3 symphonies, piano music, and a number of comic operas and operettas, along with incidental music for theatre productions. He also composed the music for the Anthem of the Young Communists (Komsomol) in 1928.