The brain plays such tricks, a note does not even have to be played, to be heard. The context leads the brain to expect it, and when it does not materialise, the brain simply fills it in. I have real examples of this on record, certain songs by Angelo Branduardi, my "tunes hero", where the oboe or basoon accompaniment actually purposely skips notes from an expected sequence, but as you listen to the song you 'd swear you heard the missing notes.

And the weird thing is, when the brain actually has to work to produce these audio-mirages, one somehow enjoys the music more. I certainly do. It is as if the brain enjoys "being involved" more than just passively. I don't know what this trick is called, or even if it has a name, but I call it "minimalist accompaniment", probably erroneously.