Music review: Geoff Barrow and Beak in Dublin

[rating]4[/rating]
Last year marked the 25th anniversary of Portishead’s Dummy. The album is as definitive a documenting of the mid-Nineties as anything by Blur, Oasis or ironic-era U2. But since then the group’s stalwart Geoff Barrow has forged forward with all the pace of a glacier creeping towards the sea. Portishead have released two further studio LPs the most recent in 2008. Who is to say if there will be another?