Arctic Monkeys

Album: The Bottletop Band, Dream Service (Bottletop)

This loose supergroup assembled by "fourth Beastie Boy" Mario Caldato Jnr in aid of fair trade/youth development charity Bottletop combines Brazilian musicians with Brits such as Tim Burgess, Eliza Doolittle and assorted Arctic Monkeys. It's a mixed bunch, from outright samba to subtly Amazonian indie-funk. Gruff Rhys, who has form for Brazilian flavours (from SFA's "Northern Lites" to his Tony Da Gatorra collaboration), proves the pick with the psycho-tropical title track.

20 years of the Warp factor

Sheffield's Warp Records celebrates its 20th anniversary in September. Nick Hasted looks back on the cutting-edge electronica/indie label that has produced acts as diverse as Aphex Twin, Boards of Canada, Grizzly Bear and Maxïmo Park

Album: Arctic Monkeys, Humbug (Domino)

If Favourite Worst Nightmare was a sketchbook of Arctic Monkeys' responses to their vertiginous success then Humbug seems to represent the more considered comedown after a few years pursuing alternative diversions.

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