Since then, Dunietz acts as resident composer for Ashbel's theatrical ensemble, and wrote the music for its next projects.

If the oboe band was a viable theatrical ensemble as late as 1688, then it must have been even more so in the 1660s, when the orchestra as we conceive of it was merely starting to come into being.

The goal, said Kate Hunter, a spokeswoman for the company, is to use the experience of creating a theatrical ensemble as a model for teamwork in business.

During the theatrical season there are numerous theatrical ensembles on tour from all of Serbia at the Cultural Centre.

Staging a war isn't absolutely necessary to put together a first-class theatrical ensemble, but it doesn't hurt.

Anthony Roche agrees: "[T]hey assert a strength through their interdependence which makes this play one of the most perfect theatrical ensembles ever devised."

The cast members agree that the even-handedness of the stories has made them work more like a true theatrical ensemble.

This highly theatrical ensemble is viewed today as a paragon of Italian Renaissance metalwork, one of the most ambitious, original and finely crafted examples ever made.

LEAD: Youngsters with professional theatrical ensembles around the city will take part in a special performance on Monday at 7:30 P.M. at the John Houseman Theater, 450 West 42d Street.

The basic idea was to apply the practices and theories of the theatrical rehearsal room and the theatrical ensemble across a university curriculum.