Not terribly unlikely in the first place, but to show any sort of effect you'd need to look at the times that you do want the song to show up and it
doesn't, and also ask other subjects the same thing, rather than seeing who agrees that it happens.
This is called the "full moon effect' or somethign like that I beleive. The story is that more babies are born on a full moon than on other nights.
The story is supported by nurses in maternity wards even who also make the claim. However, upon systematic investigation, its found to be patently
untrue. The nurses were just taking more note of births on full moon days than otherwise, and not paying attention to any 'data' that conflicted
with the 'theory'.


. Try to be a little bit more aware and not
let your mind wander so much and then you won't even have to worry about it =).