Who are 20th-century classical music musicologist persons?

8

Dmitri Kabalevsky

Russian composer
6

Bart Berman

Dutch-Israeli pianist and composer, best known as an interpreter of Franz Schubert and 20th century music.
5

John Cage

American avant-garde composer (1912-1992)
2

Jean Sibelius

Finnish composer of the late Romantic period
1

Karlheinz Stockhausen

German composer
1

Rebecca Clarke

English composer and violist
0

Arnold Schoenberg

Austrian-American composer (1874-1951)