Brian Eno is famous for many things - Roxy Music keyboard player, U2 producer, trance music pioneer etc. - but singing generally comes a long way down the list. On his first song-based album for 15 years, however, it turns out that the evergreen polymath has a lot to say, ruminating on such weighty subjects as celebrity culture and the future of the planet. Most of Another Day on Earth has a predictably ambient feel to it, with lush synthesisers, African rhythms and layers of intricate studio effects. Eno's vocals, meanwhile, are so heavily processed that he often sounds like a mildly animated dalek. It's all very soothing, dignified and impeccably tasteful. Very Brian Eno, in fact.