I made this app to help me understand the tempo&#x2F;beat transitions that the masters of the musical craft achieve. I wanted to see exactly (not just a vague feeling) of the rate of acceleration, the easing-curve, etc of the accelerando or ritardando. I wanted to know exactly how long they took on a little pregnant pause or a subtle inflection of the beat. Perhaps it&#x27;s most useful in classical music, but I think everyone in music can benefit from this. I made the tool as abstract&#x2F;simple as possible so that as many people can benefit from it.<p>Please let me know what you think, and what it needs for it to be useful&#x2F;worth it to you!