But my point is that this is not a network in the traditional sense. It's a Selector setup that can be used "as is" or customized.Yes and no.
Most iHeart's small market stations, some medium/large market stations (and the generic streams that Jeremy listed) all use identical music logs. Those used to be called "Premium Choice" but a now considered internally as being "Format Center" stations. On those stations you'll hear voicetrackers doing generic breaks that are the same across the country as well.
But the structure at each station can be different to allow for different commercial loads, etc. It's not like what we had with satellite radio in the 90's where we had to pad unfilled stopsets.For example look at 102.7 The Wolf in Fresno (Find the most recently played songs on 102.7 The Wolf), 92.9 The Big Dog Modesto (Find the most recently played songs on 92.9 The Big Dog) and Kix 99.3 Spokane since all are in same time zone (Find the most recently played songs on KIX 99.3). The songs may not line up at the exact same time, but the same logs are running.
A number of companies have "music specialists" or some-such term who do logs for multiple stations each day, often not in-market. They use the station's customized database of songs, local commercial loads, live, voicetracked or syndicated/"networked" personalities and things like traffic reports and fill in the needed music and edit logs for flow.The next level are what they consider to be "custom" stations. Those stations have playlists customized for each market, but in many cases now the actual music logs are all done by members of the national programming team, but the local PD's determine clocks and song adds. Those stations also have voicetrackers doing breaks customized for those markets in non-local dayparts.
Again, very flexible and executed at the local level according to how many minutes of non-music are in each hour.