Theatre organ (i).

The organ used in theatrical entertainments, operas, oratorios and concerts, chiefly in Italy and England, during the 17th, 18th and early 19th centuries. Such organs were located in theatres, concert rooms and pleasure gardens rather than in churches, although their makeup differed little from that of small church organs during this period. (See Organ, §V; see also Continuo, §4.)

BARBARA OWEN