Who is this Finnish composer and violinist of the late Romantic and early-modern periods that the Scottish music critic and composer Cecil Gray published books on?
Cecil Gray (composer): Cecil Gray (1895–1951) was a Scottish music critic and composer. Cecil Gray (composer):  He published books on the composers Jean Sibelius, Peter Warlock and Carlo Gesualdo, the last of these co-authored by the same Warlock; also a history of music, collections of essays on music, a play about Gilles de Rais and an autobiography. Jean Sibelius: Jean Sibelius ( ;    ), born Johan Julius Christian Sibelius (8 December 186520 September 1957), was a Finnish composer and violinist of the late Romantic and early-modern periods.
i don't know