A metronome is a device that produces a consistent beat that is settable in beats per minute. There are many different types of metronomes. The easiest way to get one is to just download an app on your smart phone.
You will need a metronome for this exercise. Set the metronome at a low tempo and play the progressions below. Play the star note on every beat of the metronome. Increase the speed of the metronome as you get better. You should practice this daily.
How fast can you play "4 notes per beat"? Play it clean! Keep track of your progress on a chart. Click the Print button or download a pdf file to print a blank chart.