“Choirs had been working under the assumption that restrictions on rehearsals would be relaxed on 17 May, at the same time as shops, bars and hairdressers opened up. Instead, the guidelines” — revised the following day to limit indoor rehearsals to six people and those outdoors to 30 — “were actually more draconian than the ones in place last September and October, when infection rates were higher, and no-one had been vaccinated.” – BBC