track listing personnel jón þór birgisson -- vocals , guitar kjartan sveinsson -- keyboards georg hólm -- bass orri páll dýrason -- drums strings : amiina ( on tracks 2,3,4,5,8 and 9 , recorded in kjartan sveinsson 's livingroom and langholtskirkja ) hildur ársælsdóttir edda rún ólafsdóttir maria huld markan sigfúsdóttir sólrún sumarliðadóttir brass ( on tracks 2 , 4 and 11 ) performed by : e. friðfinnsson helgi hrafn jónsson i.g. erlendsson k. håkonarson samúel jón samúelsson s. sigurðarson s.j. bernharðsson tambourine , claps and other noises by siggi frendi , höddi gunni , john best , sunray and breeze .