No, not a a post about Greylag Geese, though I couldn't resist the pun.
Before I publish the answer to my "Only Connect" question, this is just a shout-out to Phil to say that as he reckons he has an answer, it would be satisfying all round if he posted it before I let the cat out of the bag, which I intend to do shortly.
Incidentally, when I clicked on Phil's name in one of his comments it took me to his old blog Actually Existing, and specifically to a post expressing surprise at the number of visitors it receives a month after it closed down. I think I may just have solved that conundrum.
HERE IS THE ANSWER:
The quiz consisted of four cryptic clues pointing to song titles: you had to find the link (and ideally the song titles themselves too).
The link, as Phil divined, is Hits by The Hollies.
1) Salicional, Vox Humana, Diapason
STOP, STOP, STOP
2) Which half of this bikini is which?
I CAN'T TELL THE BOTTOM FROM THE TOP
3) Schoolgirl could be famous conductor, we hear
4) 78% nitrogen, 21% oxygen, 1% other gases
THE AIR THAT I BREATHE
Apologies for the pun (Karajan = Carrie Anne!) in number 3. Hope you enjoyed it. I may do some more as inspiration strikes.