Paragraph 14
(1)
A “performance of a play” means a performance of any dramatic piece, whether involving improvisation or not,—
(a)
which is given wholly or in part by one or more persons actually present and performing, and
(b)
in which the whole or a major proportion of what is done by the person or persons performing, whether by way of speech, singing or action, involves the playing of a role.
(2)
In this paragraph, “performance” includes rehearsal (and “performing” is to be construed accordingly).