This game is a neat and simple edition to the game jam. I like the simple controls and your use of a feedback loop. My only complaint is not being able to lower the volume of the music. I love the music but it's just very loud in my opinion. I especially like the ghost infinitely loops over the recording, so you don't have to worry about timing as well as having duplicate ghosts at the same time.
Very well done, glad to have played it.