if you want to hear it again.

unused?

I think you should not base the accuracy on the width of the items but on the time +/- an error margin

This was the initial plan. But Animtim told that it may cause inaccuracies depending on different device's latency so it's not good to use time as a measuring parameter. Then we decided that we can use the position of note + width as the parameter.

Added in the latest commit.

Removed