New music: Purity Ring – Ungirthed

When the debut single from Purity Ring – the new project from a member of New York electro-poppers Gobble Gobble – glides into view, all pinging beats and ghostly vocal samples, you immediately assume the next couple of minutes will consist of repeated pitched-down samples (a sound currently favoured by "blog bands" ). So it's thrilling when Megan James's catchy vocal arrives after 30 seconds and Ungirthed instantly takes shape. It even has a dash of Auto-Tune at one point – a sly nod to the pop mainstream from a track that's catchy enough to nestle there itself.