In many casses the radio stations received the "Promotional-Not For Sale" copies. Often, the same song (the one the record company wanted played) was on both sides of the 45. As the stereo 45 was born, and FM stations started to play pop hits, it was not unusual for one side of the 45 to be mono and other side stereo. This first came to my attention with the 5th Dimension's "Aquarius/Let the Sunshine In". One side was the edited mono version (about a minute shorter) the other side stereo and full length. Even with the old equipment we were using at WSER, the stereo version sounded better, with the bass more pronounced.
As for airplay, most stations sent their weekly Top 40 or Top 30 charts to the trade mags. It would be assumed that song #1 got the most airplay, song #2 a little less, etc. Even MOR/AC stations such as WNRK in the late 60's produced a weekly survey for this purpose.
> > While air play was a major factor in deciding chart
> > position, remember that many of these songs were played on
>
> > both Top 40 and MOR/AC stations. A look at the WABC
> weekly
> > surveys, posted on
www.musicradio77.com shows, that a lot
> of
> > Sinatra, Jack Jones, Robert Goulet, Andy Willams, Al
> > Martino, etc. material was on the surveys, based on record
>
> > sales only. Yes, most of the adults who liked this music
> > bought albums. But many also bought 45's and some teens
> > liked this music also. I've bought quite a few record
> > collections over the years. Its amazing how many teens,
> > especially females, bought music we now think of as easy
> > listening. And it was the 45's they bought.
>
> Johnny Mathis might be a good example of this type of music
> popular with teenage girls who bought 45s. Later in the 70s,
> probably an artist like Bread.
>
> > > What did Billboard base its AC/EZ listening charts on?
> > > Strictly airplay I'd imagine...while most of these songs
>
> > > were undoubtedly released as singles for broadcast use I
>
> > > doubt many stores carried them (nor was that demo likely
>
> > > to buy 45s in the first place). What did the stations
> > > reporting the airplay base their charts on?
>
>
> The book states the 7-in 45 vinyl single was the standard
> for the AC charts for 1961-89, but also mentions that the
> label & number are from the original commercial releases. Do
> radio stations get special promotional copies not available
> for sale?
>
> Also mentioned in the updated book is the new chart
> methodology introduced in 1993. Stations are continuously
> monitored for airplay electronically by Broadcast Data
> Systems, a subsidiary of Billboard. So I guess before this,
> stations reported their own airplay, perhaps, based on
> listener requests.
>