The way KDA FM began in March of 1970 and what they developed into down through the years was two different animals;however, somehow KDA-KDF managed to keep the loyal listeners from day 1 on board. To me that was amazing since the product of those two eras was so different.
KDA FM with Bob Cole as their music director was just the coolest thing to hit Nashville since Goo Goo candy bars. I actually remember Goo Goo candy bars. God, I am so old now.
Anyway as Jim Eskew has pointed out on Hudson Alexander's web site about Nashville radio, the earliest of KDA FM days was wide open. Any album, any cut could be played, within reason. The jocks had the understanding that there was just some tunes that you should not play at 8 in the morning because the songs were just to freaky sounding. "Atom heart Mother" by Pink Floyd comes to mind. Not a great song to fire up in morning drive time. That tune was best suited for 3 in the morning. The jocks probably had the freedom to play that at 8 in the morning though if the inspiration hit them. It was free form rock radio and it was fairly new and it was so much fun to listen to. You could call up and request any tune, regardless of whether it was obscure or whatever, and the jock might actually play the tune.
What KDA became in the eighties was musically appalling. The Thompson Twins???

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At the risk of POing the program director of KDF at this dreadful era, it just was not the same product. I bet the PD at 103.3 in the early eighties checks in this forum now and then. LOL
What is amazing is that many of us who were on the KDA FM ship in 1970 still listened to the KDF 1980's product.