It would be better if the lowest interval was below 60bpm and the clicks could optionally be the same volume for each beat (not louder on each 4th beat).

I use it to enhance my typing skill and rhythm is so hard for me to follow. This application is simple to understand, it works great and developer listens to user's advice!
Thank you very much for your work!
Please, add another sound, something like classic "click". (Added, works great)