Not what you want, but I have been using https://sightreading.training/ https://sightreading.training/ for practicing sight reading, and it is fantastic for the

Not what you want, but I have been using https://sightreading.training/ https://sightreading.training/ for practicing sight reading, and it is fantastic for the intended purpose, though quite boring and terrible to listen to. I actually use it with no sound, just the MIDI for instant feedback. It would be great if it created some decent sounding combinations, keep your statistics, progress, etc, but I have improved my sight reading by leaps and bounds in a couple of weeks. I have just noticed that the project is open source (https://github.com/leafo/sightreading.training https://github.com/leafo/sightreading.training) so come on fellow geeks, pitch in some of your talent....