by GREG KING 25 Tracks is a documentary looking at Cath Sheahan and Nick Larkins, two indie singer songwriters from Melbourne who planned to record and release a new song, every two weeks of the year. They invited local filmmaker Fiona Cochrane to record their project, and the result is this 52-minute documentary. Greg spoke to Fiona about her film career and the origins of 25 Tracks, which is screening as part of …