Columbia subject headings:
Composers--Germany (East)--Biography.
Music--Philosophy and aesthetics.
Musical analysis.
Zechlin, Ruth, 1926-2007.
Harvard subject headings:
Composers--Germany (East)--Biography.
Music--Philosophy and aesthetics
Musical analysis.
Zechlin, Ruth, 1926-2007
Princeton subject headings:
Composers--Germany (East)--Biography.
Music--Philosophy and aesthetics.
Musical analysis.
Zechlin, Ruth, 1926-2007.