Die Fledermaus is one of the few operatic works to which the phrase ‘never a dull moment’ can be truthfully applied. From the explosive opening of the famous overture – reminiscent of a volley of champagne corks – through the surging energy of the ‘Fledermaus Waltz’ and the many comic numbers, of which the accelerando trio is the finest, up to such huge concerted numbers as the ‘Duidu’ finale to Act II, this is an operetta which almost incarnates nostalgia.