It goes sort of like "squeak"

I was sitting on the train today, in a carriage suffering from a particularly bad case of the squeaks. However, rather than being annoying, the squeaking was oddly rhythmic, to the point that it somehow reminded me of a song I heard recently. The song was one of those insidious pieces of music that somehow manage to bypass conscious thought processes to slip straight into long term memory. Consequently I don't know anything about it - not the composer, not a fragment of the lyrics, nor even the genre. Nothing save for that fact that I really rather liked it, yet I couldn't even hum it if I wanted to.

I'd quite like to find out what it was, but truthfully, all I can really say about is that it reminded me of a train squeaking. Or vice versa, at least.

Naturally, no rational person would be able to identify the song from that description alone, so I throw it open to you all.

Any ideas?