Birthdays in Music Apr 7 Otto Adolf Klauwell, composer Apr 12 Emil Liebling, German-American composer, born in Pless, Silesia (d. 1914) Deaths in Music Apr 8 John Parry [Bardd Alaw], Welsh composer and harpist, dies at 75 Apr 9 Antoine-Charles Glachant, composer, dies at 80 1850 Music History by Year 1852