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.
Shovkat Mammadova Shovkat Hasan qizi Mammadova (Azerbaijani: "Şövkət Məmmədova" ) (18 April 1897, Tbilisi – 8 June 1981, Baku) was an Azerbaijani opera singer (lyric coloratura soprano) and music instructor.