Jun 15 Nikolay Zaremba, Russian composer and teacher of Tchaikovsky, born in Vitebsk Governorate, Russian Empire (d. 1879) Jun 27 August Conradi, German organist and composer, born in Berlin, Kingdom of Prussia (d. 1873) May 1821 Birthdays in Music by Year Jul 1821 Famous Singers Country Singers Jazz Singers Opera Singers Pop Singers Rappers Rock Singers