Mostly our coverage in this column is a recommendation to try something new. Just occasionally, however, it has to be a dire warning to steer clear. From a group whose flair and inventiveness I have very much admired in a variety of baroque repertoire comes a real horror — an attempt to update Purcell to a classic of the jazz era. Turning Dido's Lament into lounge-bar smooch, and Music for a While into a lazy clarinet-dominated improv is just unbearable. The vigour of Wondrous Machine is completely dissipated; In vain the Am'rous Flute survives unscathed, all the odder in this context. They say great music can withstand anything, but now I'm not so sure.