i suggest making currently playing tones marked in colors like this
http://img683.imageshack.us/i/image5ab.jpg/while listening ,i know it is found while playing but not listening,i cant read fast and complex notes like
chopin with this blue marker only
also i have another problem here
http://img190.imageshack.us/i/image7rn.jpg/as you see upper notes are missing
finally i appreciate greatly this nice work...thx