This app to help musicians. Using the app， a musician can see if they have a good internal sense of time.
You just try pressing some buttons and moving sliders， you will see/hear how it works.
+ Top row： Number of beats.
+ Second row： Mute/delete the meter.
+ Third row： Change note values： 1/4， 8th， 8th-tripplet and 16th
+ Slider(+/-)： The number of beats per minute.
Hope this tool is useful for you.