I read about this a while back, was tempted to try the demo and I was smiling all the way through despite having zero rhythm and losing a lot. I haven't been keeping an eye on the fanscene, which I appreciate is really quite extensive so I came to the pre-order version as basically a novice. I am impressed. So inventive, so clever. Well done developers, keep it up.
I appreciate part of the fun is seeing the new features and you earn them by clearing levels, but wow, it is hard for a new player. I am pretty good at rhythm action usually, but this is crushing at times (even if it is keeping a metronome beat mentally). I lost a lot. Consider putting in a super easy mode or expect a number of less patient players to refund and leave a negative review when you release on Steam.
Thanks tho, this is awesome.