There are three operas on offer. Purcell's Fairy Queen and Handel's Xerxes are new productions; Handel's Flavio a resuscitated greatest hit from 2009. If they're anything like as good as ETO's spring tour offerings, all three nights should be unmissable.
The theatre only holds 400, so tickets have gone quickly, but there are still a handful left on the RCM website, or you can book by phone direct with ETO. The tour then continues at various venues around the country.
The Britten Theatre later hosts a Royal College of Music double bill of two rarely-heard early Bizet operas, Le docteur Miracle and Djamileh - neither exactly masterpieces but worth catching for curiosity value alone.