One thing about the health system that I was discussing with another user. The current system for V1 is good but there is a small problem with it in the regards to misses at the beggining not hurting as much as later on. This is because you have 0 health to lose if you miss the first note so it's only penalizing in the sense of not gaining HP but not in the loss of HP as you would get at other points further in the map.
Solution for this would be to have the same HP system but start the bar halfway full. Also 75% Filled would be a pass now and as much health to go from 0-100% would be required to go from 50-100% in new system. Miss penalty would also have to be tweaked so it removed an appropriate amount of HP. This way screwing up at the beggining of a song would cause the HP bar to go below 50% causing equal penalty to missing at any other part of the song.
Solution for this would be to have the same HP system but start the bar halfway full. Also 75% Filled would be a pass now and as much health to go from 0-100% would be required to go from 50-100% in new system. Miss penalty would also have to be tweaked so it removed an appropriate amount of HP. This way screwing up at the beggining of a song would cause the HP bar to go below 50% causing equal penalty to missing at any other part of the song.