In another thread, rbrucecarter said,
The main reason "underground" rock FM stations of the late 60's and early 70's existed was because of censorship on AM top-40. The format still exists, morphed into classic rock. Top-40 format stations learned their lesson and don't censor today.
To understand how totally wrong that statement is, you need to know some radio history. When the FCC mandated a near-end to simulcasting AM with FM in the larger markets at the beginning of 1967, station owners had to find new programming for hundreds of larger market FMs that had been simulcasting. They looked for formats that did not appear to compete with the AM cash cows they owned, so they either went to the progressive rock side or to the soft "beautiful music" side to protect revenue.
Top 40 stations were mainstream. Most progressive rock was not mainstream, and would drive away the bulk of the adult female listeners of Top 40. The music, being produced in quantity by that time, did not fit the listener target of AM Top 40. As mentioned, the cuts tended to be very long and the appeal, initially, was very narrow.
Just as Top 40 stations did not play hard core country, they did not play hard core progressive rock. It was not "censorship" but, rather, a protection of the listener base of which a large percentage would hate it if too many hard or "acid" rock songs were played. Still, plenty of Airplane and Joplin and Zepp songs became hits, because they were crossovers (or good bathroom records).
I'm reminded of an early 70's anecdote where the staff of a Top 40 AM spliced an Iron Butterfly into a Shulke tape that would be played later in the day on the sister beautiful music station. The announcer on the FM nearly had a stroke! Of course, the point is that Shulke did not play Butterfly, not due to censorship, but due to fit.
The main reason "underground" rock FM stations of the late 60's and early 70's existed was because of censorship on AM top-40. The format still exists, morphed into classic rock. Top-40 format stations learned their lesson and don't censor today.
To understand how totally wrong that statement is, you need to know some radio history. When the FCC mandated a near-end to simulcasting AM with FM in the larger markets at the beginning of 1967, station owners had to find new programming for hundreds of larger market FMs that had been simulcasting. They looked for formats that did not appear to compete with the AM cash cows they owned, so they either went to the progressive rock side or to the soft "beautiful music" side to protect revenue.
Top 40 stations were mainstream. Most progressive rock was not mainstream, and would drive away the bulk of the adult female listeners of Top 40. The music, being produced in quantity by that time, did not fit the listener target of AM Top 40. As mentioned, the cuts tended to be very long and the appeal, initially, was very narrow.
Just as Top 40 stations did not play hard core country, they did not play hard core progressive rock. It was not "censorship" but, rather, a protection of the listener base of which a large percentage would hate it if too many hard or "acid" rock songs were played. Still, plenty of Airplane and Joplin and Zepp songs became hits, because they were crossovers (or good bathroom records).
I'm reminded of an early 70's anecdote where the staff of a Top 40 AM spliced an Iron Butterfly into a Shulke tape that would be played later in the day on the sister beautiful music station. The announcer on the FM nearly had a stroke! Of course, the point is that Shulke did not play Butterfly, not due to censorship, but due to fit.