Big Sir, featuring Mars Volta bassist Juan Alderete, are set to play a free show at London’s Old Blue Last tomorrow night (28 April).

A collaboration between Alderete and Lisa Papineau, best known for her work with Air and M83, Big Sir have just released their third album Before Gardens After Gardens on Omar Rodriguez-Lopez’s adventurously named Rodriguez Lopez Productions. You can listen to the Portisheady, Team Sleepy record below.

Support comes from Holy Esque and Scatter Brain, plus Best Fit DJs downstairs all night.