Sophocles. Dennis Potter. The painter El Greco. Not the usual collection of influences that go towards shaping an album, but then Trembling Bells are not your usual sort of band. Oh, there’s a break-up with a girl in there somewhere, too, of course. That’s more the typical sort of thing, isn’t it? But The Sovereign Self is a remarkable work from remarkable musicians – one of Britain’s most distinctive and exciting groups.