Radio and CD Player in sync

Last week I was driving along listening to Classic FM radio and a couple of minutes into one piece of music (it was Borodin), I decided it didn't match my mood so I switched to my 6 disc cd player in which I have kept the same fairly diverse discs for months if not years. To my complete bafflement, it seemed I had failed somehow to switch, so I switched back to the radio - and then I realised that my CD player had picked up on exactly the same track, and merely a "cat's whisker" behind! At a guess there are an average of 15 tracks on each cd - so I spent the rest of the journey pondering on the probability of that ever happening again in my lifetime (I am 65 and drive extensively, ergo listen to the radio/cds). Incidently, a friend suggested that my boredom threshold must also reach the same point on the same track each time! This has been on my mind ever since - so is it a coincidence that coincidences came up on Radio 4 so soon afterwards?!!