In Short this magic covers only two focuses: Sound and the body.
It enables the users to manipulate sound waves amplifying or lowering them.
There is also a main martial art called the Resonate Fist that harness the power of sound vibration within ones hands or feet(though as one gets experienced one will be able to harness thiss with their knees and elbows. This energy can either be kept within or be shot out at a wider range(Though it will lose power as it spreads)
As for body, this is mainly for increasing Stamina, Pain Resistance and Physical aptitude. I'll explain this a little better in a minute however some of its abilities are similar to Sanryu