Birthdays in Music Dec 9 Pietro Alessandro Guglielmi, Italian opera composer, born in Massa, Tuscany, Italy (d. 1804) Dec 21 Hermann Friedrich Raupach, German composer, born in Stralsund, Germany (d. 1778) Dec 25 Johann Adam Hiller, German composer, born in Wendisch-Ossig, Saxony (d. 1804) 1727 Music History by Year 1729