Ergonomic rings for drum stick, method of installation, and method of use. A pair of resilient rings is installed on a drum stick spaced apart substantially by a distance equal to the width of a drummer's middle finger. The ergonomic rings have the effect of increasing drum stick radius, thereby substantially reducing the amount of force the drummer must expend to play the drum stick, reducing drummer fatigue, and increasing drummer speed. In addition, the rings aid in ensuring that the drummer's hand is disposed in the correct location along the length of the drum stick, and in preventing the drum stick from slipping out of the drummer's hand during play. Methods of installation and use are also disclosed.

 
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> System of processing music performance for personalized management and evaluation of sampled data

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