Is it considered against standard Buddhist doctrine to meditate with music?

Two slightly related questions: Is it considered against standard Buddhist doctrine to meditate with music? In particular, "meditation music" - where it's calm, relaxing, peaceful, etc. I'm fairly new to all this; my meditation practice is hardly a year old, although getting stronger and more consistent; I don't have an overwhelming urge to meditate to music, but wondered what light could be shed on the subject from the perspective of the teachings. I am committed to undertaking this path as purely as possible, as it was laid out by the Buddha himself. But I enjoy music and find it draws me into certain mental states that could be useful to cultivate. What should I do when the inevitable song pops up in my thoughts? This is something I've noted for years (I'm quite musically inclined)...I always seem to have some sort of tune running through my head. Now, when I sit, it becomes much more noticeable than when I'm doing something more secular...say, standing in line at the store, or performing some task at work. I suppose that the tune could become the focus of some mindfulness meditation and help develop concentration. OTOH I can see how it would be considered yet-another-thought, and one that should be avoided dwelling on (unless it happened to be the focus of the meditation). I don't know how useful it would be for insight meditation however. Is there an official stance in the teachings on this? I hope this is not considered a useless question.