Columbia subject headings:
Germany--Social conditions--Case studies.
Leisure--Social aspects--Germany--Case studies.
Music teachers--Germany--Case studies.
School music--Instruction and study--Germany--Case studies.
Student activities--Germany--Case studies.
Harvard subject headings:
Germany--Social conditions--Case studies.
Germany--Social conditions.
Leisure--Social aspects--Germany--Case studies.
Leisure--Social aspects--Germany.
Music teachers--Germany--Case studies.
Music teachers--Germany.
School music--Instruction and study--Germany
School music--Instruction and study--Germany--Case studies.
Student activities--Germany--Case studies.
Student activities--Germany.
Princeton subject headings: