I am using Chordify to help transcribe and notate music. Seeing what goes in a certain measure is helpful. But what would be SUPER helpful, is if you could divide each of the bars in the measure into 4 bars themselves then show each bar highlighted as the song plays. This will help notate the 16 8 notes etc. So basically each measure would have 16 bars of its own and each of those bars would light up as the song plays.
Currently, I doubt whether the resolution of the beattracker is accurate enough to display the subdivisions you propose. However, perhaps in the future this might be possible.