A free program for Android, by PromusicSoftware.

You are a professional musician, and you need to practice your craft every day. It is not enough to practice your instrument alone. You need to have a solid musical foundation as well, and that is what Metrodrummer is for.

It is the most effective and simplest way to improve your music skills. You can practice with it on any music instrument. This app has several styles, including classical, jazz, pop, rock, folk, and more.

The best thing is that it is easy to use and very simple. You don't have to know any music theory or be a music expert to use this app. All you have to do is to tap on the beats and they will play. You can even use this app as a metronome. It has a built-in drum machine that you can use as well.