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Sergei Mikhailovich Lyapunov
(sau
Liapunov
;
rus?
Серге?й Миха?йлович Ляпуно?в,
pronun?iiiat in rus?
[s??r???ej m???xajl?v??t? l??p??nof]
; 30 November
[
S.V.
18 November]
1859 – 8 November 1924) a fost un pianist si compozitor rus.