I'm not suggesting anything more dramatic than them playing a current or two within pretty much the exact same playlist they have now (albeit probably at the cost of the little bit of 70's rock they play that has heavy overlap with 93XRT and The Drive). If it came off as otherwise, I apologize. If you did understand what I was getting at, could you explain why it would be such a major, audience-alienating shift to play, for example, Chris Cornell's cover of "Patience", a recurrent like "S.O.S. (Sawed Off Shotgun)" by The Glorious Sons or a 2010's hit like "Gold On The Ceiling" by The Black Keys, once or twice in an hour of pretty much the same music they're playing now?
The listeners they are getting, and I continue to believe that the full month, out Monday, will have them as high as within the top 10 stations in the sales demos, are there for the familiarity. There is no need to play currents until they are well aged. The issue, of course, is whether their listeners hear enough of current rock to even recognize those songs... and recognition, called "familiarity" in research, is key to this format. No surprises, just known favorites.
I don't doubt that iHeart did an insane amount of research to make the playlist work for the Chicago market. They also probably spent a lot of time listening to their would-be competitors to know what the audience is listening to and what they are lacking.
I doubt they listened much. They just pulled the playlists from BDS or MediaBase and analyzed by daypart, repetition patterns and the like.
The main research for a new station of this kind is an AMT. Auditorium Music Test. Not done in Auditoriums for decades, they are mostly done online now with listeners with specific ages and characteristics being asked to hear tidbits, called "hooks", of songs and to score each one as to how much they'd like to hear each one on the radio today.
The idea is to find a group that is OK but not satisfied with existing stations and finding the "hole" that can be filled that may pull from a number of stations, not just one. That is often done with an Awareness-Trial-Usage study before the AMT to determine the "like" of a variety of music blends and whether that niche is being satisfied. That reveals the possible openings in the format spectrum.
Such a procedure was used a number of years ago by Emmis in Argentina. We went in with a station but no idea of what format to employ. The ATU test found a huge hole for Spanish language rock just by Argentine artists. It was so big that the station jumped to #1 in 30 days and had the largest radio audience in the Western Hemisphere for a half a decade until Emmis pulled out due to the political situation.
In other words, this is a long-standing, trusted research methodology that adapts easily to new media or a new environment.
They are literally playing a huge plethora of songs that have been neglected (Nirvana, Soundgarden, Kings of Leon, blink-182) or completely absent (pretty much everything The Loop played) in the Chicago market. It's smartly programmed, but I have to wonder what happens when the "new station smell" wears off. Right now there's a gradual building of curious listeners, but what happens six months from now? I think the current playlist is extremely intelligent and should hook people, but eventually they'll have to start mixing it up. I am curious to see what they'll do when they have to start gently adjusting the formula.
Why would they adjust. They just regularly test the library, and propose newer songs that may enter as the audience ages but the station target remains the same. Songs that get burnt are cut off, or rested, or put on light rotation. But the feel of the station stays stable.