Small Musical Components
I've got an idea in my head, but there's one part that may unravel the whole thing so I thought there would be no better place to ask than here!
I'm wondering if there are any tiny devices that will play a given song (on repeat likely) when power is supplied to the device? If you've ever seen one of those birthday cards that plays music when they open then you have a pretty good idea of what I mean. I'm looking for something that would fit inside of an area about half an inch deep by an inch across.
Something like you'd see inside of a music box (except scaled down) - does this sort of thing exist?