Birthdays in Music 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) Deaths in Music Sep 1 Johann Ernst Bach, composer, dies at 55 1776 Music History by Year 1778