Which Russian opera singer with a basso profundo vocal range died April 12, 1938?
Basso profondo Basso profondo (Italian: "deep bass"), sometimes basso profundo or contrabass, is the bass voice subtype with the lowest vocal range.
Maria Nikolaevna Kuznetsova Maria Nikolaevna Kuznetsova (1880April 25, 1966) (Russian: Мария Николаевна Кузнецова, also spelled Maria Kuznetsova-Benois ) was a famous 20th century Russian opera singer and dancer.