94.9 has confused me, a citizen of Miami-Ft. Lauderdale area, for a long time.
I seem to recall, during Oct 1974, 94.9 was running 940's Tom Adams morning show* 6-10 am, then they were on their own. Now it seems right that it was beautiful music (or running symphonies at night?). I believe when Zeta 4 started, it had to have been after the Adams debacle then. Now I cannot even recall when "Zeta 4" began, but I'm almost sure it was not running 940 in the morning by then.
Sherry Woods at the Miami News was very adept at the goings-on in radio at that time. t.j., you must be checking out the same site that I bookmarked on my PC! (Too bad that nothing can be printed out.)
[*Funny thing: Nobody seems to have info on Tom Adams, even here on this site. In late 74, Adams was considered a big radio star, and luring him to WINZ from WIOD was quite the coup. However, (a) his show didn't seem to last more than 3 months, and (2) nobody seems to know wha' hoppn' to him since then.