Sep 7 Heinrich David Stölzel, German horn player who developed the first valve for brass instruments, born in Schneeberg, Saxony (d. 1844) Sep 20 Ramón Cuéllar y Altarriba, Spanish composer, born in Santiago de Compostela, Spain (d. 1833) Jun 1777 Birthdays in Music by Year Oct 1777 Famous Musicians Country Singers Jazz Musicians Opera Singers Pop Stars Rappers Rockers