North Atlantic Oscillation are a post-progressive rock and electronica band from Edinburgh, Scotland. They are signed to the Kscope record label and released their debut album Grappling Hooks on 22 March 2010. The band currently consists of Sam Healy, Ben Martin and Chris Howard.
The band was initially formed in 2005 by Healy, who had played in several bands previously, and Martin, who had moved from the English Midlands to Edinburgh to study. The duo later expanded to a three piece when they added Bill Walsh to the live line-up. After Walsh left at the end of 2009 he was replaced by Howard, although Walsh still appears on-stage with the band from time to time on guitars and additional keyboards, and has produced several remixes for the band. The band are named after the North Atlantic Oscillation, a fluctuating change in the atmospheric pressure differential that exists between the Icelandic Low and Azores High.
In November 2009 the band released an EP titled Callsigns EP.
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