So as we know sound Breathing lacks actual moves, there's only like 3 named techniques. Most of sound breathing is just Uzui using what would be M1's.
So what if a focus of sound breathing for DSRPG3 would be the M1's.
So e.g.
Instead of swapping types of kunais, you swap your M1's style.
Style 1: single strikes that cover broad distances and have strong knock back
Style 2: short range but rapid strong strikes (allows running)
Style 3: similar to style 2 but has a greater aoe, including explosions, still allowing running but with a small speed reduction as it's not the massive running explosion attack
Something like this could be cool and add to a breathing style that doesn't have a lot to it.