A tuning system enabled to be installed inside a drum percussion musical instrument is provided comprising a cylindrical drum shell having a batter head at a top, a bottom, and one or more internal tuning assemblies (ITAs) installed within an inner volume of the drum shell. Sound elements created by striking the batter head of the drum includes any one or more of pitch, resonance and amplitude and are altered, thereby providing tuning of the drum via manipulation of the one or more of the ITAs.