That is why they say Time is Gold because time is really important. We need time to determine in doing our daily exercise, work and in everything we do. Too much of something is bad for us, so we have to minimize the food we eat and things we do every day. And it is obvious that time is really important because we can see it inside our house, in offices, and we even wear it. There are many instruments that show time. These device produces regular, metrical ticks, and some musician and composers use metronomes for practice in maintaining a consistent tempo because of its settable in beats per minutes, an easy way to keep time during practice. The instrument for the improvement of all musical performance and that’s the metronome.