SYDNEY’S music stations have suffered a major reversal in 2013 with WSFM taking the lead over the seemingly unassailable 2DayFM. Southern Cross Austereo’s (SCA) Sydney station lost listeners across all timeslots and suffered big drops in its key 18-24 age demographic. WSFM stayed steady in the second survey of the year, according to figures supplied on Tuesday by Nielsen, with 8.5 per cent of the radio audience.