Sometimes it’s worth remembering that what is world music to one music lover is pop music to another. Portuguese four-piece Deolinda’s first album, Canção ao lado, spent nearly two years at the top of the charts at home, so there are an awful lot of people who see this band as pop music. This must also make it strange for the band themselves who, presumably, play sizeable venues in Portugal, only to find themselves in front of a London crowd of less than 300 at the Jazz Café last night. And to add one final twist, this London crowd seemed to be largely made up of Portuguese fans.