The McNeill Street Pumping Station New Music Festival 2011 has an open call for sound works. Proposals are welcomed from artists under the theme 'architectural exploration in sound', for pieces which look specifically at relationships between sound and space.
The pumping station is located in Shreveport, on the banks of the Cross Bayou in Louisiana, and the festival takes place on 14 October this year. Deadline for submissions 1 August. More info and application details here.