I like the concept of this one, I'm not sure if it's been done before but a piano clicker game just seems like such a natural fit. There's a few issues with the execution: the upgrades feel unbalanced, the last two seem to do the exact same thing, sometimes upgrades don't go through, and (perhaps most significantly) the autoplay just plays all the notes every second instead of playing something music-like that increases in tempo with the upgrades (what I thought it would do). Despite its flaws, it had my attention for a lot longer than I thought it would.