A Sunny Day in Glasgow has spent the better part of its still-brief career skirting preconceived genre categories with abandon, so it makes sense that the group now shirks geographic barriers as well. These days, the members are spread among New York, Philadelphia, and Sydney, Australia, where de facto leader Ben Daniels moved in 2009. None of them live in Glasgow. Co-founder Ever Nalens, once a resident of the Scotland city, has long since left the band. That makes sense, too. Glasgow isn’t very sunny — that’s the joke. Sea When Absent, the collective’s fourth full-length, is an almost blindingly sunny effort, rich with the sort of lush keyboard textures and high-wire vocal melodies that carve out an unplotted middle ground between shoegaze and synthpop.