Should divine visions of philosophical beauty be cut short by practical things like food or fireworks? Strauss’ Ariadne auf Naxos is an opera of two worlds in collision, and Anthony Negus, conducting the Longborough Orchestra, worked the score’s lightning moodswings and dreamily re-echoed themes into a glittering, believable whole. Stunning central performances by Clare Presland, Helena Dix and Jonathan Stoughton were just a few highlights of Longborough’s luxuriously-cast and absorbing production.