Columbia subject headings:
Bach, Johann Sebastian, 1685-1750.
Organ (Musical instrument)--Germany--History--18th century.
Harvard subject headings:
Bach, Johann Sebastian, 1685-1750
Organ (Musical instrument)
Organ (Musical instrument)--Germany--History--18th century.
Princeton subject headings:
Bach, Johann Sebastian, 1685-1750.
Organ (Musical instrument)--Germany.