Handel’s Acis and Galatea is a peculiar piece in some ways. It was written to be performed at Cannon’s, the Edgware residence of the then Earl of Caernavon, presumably for his guests. Apparently the performance style was to have the singers sing from music stands in front of a painted backdrop. So, a sort of oratorio with curtains. It’s not uncommon to stage Handel oratorios as opera these days. Theodora is done quite often and even Messiah has been staged so it’s no great surprise that Acis and Galatea should be given a similar treatment. In fact Wayne McGregor’s 2009 Covent Garden production stages it as an opera and a ballet simultaneously combining the resources of the Royal Ballet and the Royal Opera.