Additional
Information: German composer Friedrich Wilhelm Langhans (1832-1892) was also a violinist and a writer. Among his publications was The History of Music in Twelve Lectures.
Langhans, Friedrich Wilhelm Sites:
Langhans, Friedrich Wilhelm Langhans, Friedrich Wilhelm: Biographical sketch noting abilities as writer, violinist, and composer from the Grove Concise Dictionary of Music entry at WQXR radio. (Langhans, Friedrich Wilhelm) http://www.wqxr.com/cgi-bin/iowa/cla/learning/grove.html?record=5176