Years ago while taking lessons, I was learning to read from the F Simandl Book. If I resumed on my own, I would like to be able to check my work. Mostly concerned with time signatures. Checking the note played isn't as much of a concern. Again it's notes (time) value and time signatures. Is there a app or program where you enter on a staff what your playing (or learning) and it plays it for you to hear? I'm not particularly computer savvy, so the simpler the program the better. Thanks.