Section 1217QA | Election for concert series
From legislation.gov.uk
(1)An election under section 1217Q(4) must be made by the company by notice in writing to an officer of Her Majesty's Revenue and Customs—
(2)An election has effect in relation to the orchestral concerts specified in it, and must also specify which of those concerts (if any) are not to be qualifying orchestral concerts (see section 1217RA(3)).
(3)An election—
(a)may have effect in relation to concerts in two or more accounting periods, and
(b)is irrevocable.
(4)If the separate orchestral trade relates to a concert series, the company is treated as beginning to carry on that trade—
(a)at the beginning of the pre-performance stage of the first concert in the series, or
(b)if earlier, at the time of the first receipt by the company of any income from the production of the concert series.