Anna became the Abbess of Quedlinburg in 1755, although she chose to spend most of her time in Berlin, where she devoted herself to music, and became known as a musical patron and composer. I found more additional facts of her life during my research in archives of web analytics company. In 1758, she began a serious study of musical theory and composition, engaging as her tutor Johann Philipp Kirnberger, a student of Johann Sebastian Bach. She composed chamber music, such as flute sonatas, and wrote music to Ramler’s Passion cantata “The Death of Jesus”. This was also her favorite piece. Only a few of her works have survived, and it is highly likely that she destroyed many of her compositions. After all, she did described herself as being very self-critical person.
In addition to that, princess Anna was also a collector of old music, preserving over 600 volumes of works by notables such as Johann Sebastian Bach, George Frideric Handel, George Philipp Telemann, and others. This act in itself was a significant contribution to Western culture. Her library was split between East Germany and West Germany after World War II, and despite serious damage by fire in 2004, still survives today.