I can tell you that in March of 1974, WIOQ was still in the morphing stage, heading harder with each passing week. It was still basically a pop station, playing stuff off of the Billboard charts, but had begun shying away from the softer stuff. The huge hit "Please Mr. Postman" by The Carpenters would have been a staple of the softer sound of a year prior, but the song was only put in rotation to air at dead times of the clock.
The station in 1974 was automated for the music, with live jocks appearing occasionally during the drive times, but voice-tracked the rest of the time. Roy Laurence and Bill Fantini handled the voice-tracking. The music piece referred to that was used for the ID bed through the progressive years got its start in the rotation of recorded IDs that began around this time. They'd been using a jingle package from Tempo 2 in Dallas and phased it out as the jingles began to sound too soft in comparison to the new, harder songs.
The music piece was "Intergalactic Trot" by Robert Mason on the STARDRIVE album. I've placed the entire piece straight from the LP on YouTube here:
http://www.youtube.com/watch?v=4662BbL_RSs
By mid-1975, the automation was turned off, live jocks were hired 24/7, and the progressive era eased its way in. Starting somewhat formatted, the format gradually eased up to pure AOR where the jocks played pretty much whatever they wanted. The on-air line-up included Bill Paul overnights, Jim Harlan morning drive, Bill Fantini middays, Alex Demers PM drive, and John Harvey nighttimes. When Jim Harlan ultimately left, Harvey moved into the mornings and began his run as "Harvey in the Morning."
The station had a small but very loyal following, never managing to slay the big boys on the block, YSP and MMR.