I thought your idea of picking a thing from flickr was good, after all, once we get the song, we still have a lot more narrowing down to do.
Q1: Is your thing mentioned in a number of songs n, such that n is a natural number with square root greater than 1?
A1: Yes.
Can I just clarify this, as having not needed to do maths like this in about 18 years, I’m a little rusty. This means it is in at least 4 songs? It also has other implications.