As a world music critic one gets used to the stream of superlatives that generally arrive in the wake of whatever big new act is being plugged. World music promoters have a particularly hard job because they don’t just want to preach to the converted; they also want to try to get some new listeners to widen their musical horizons a little. So even before I’d heard a note of the Creole Choir of Cuba I knew that they’d gone down a storm at the Edinburgh Festival, that Jools Holland’s producer wanted them for Later..., and that they were booked to do various BBC radio sessions.