My stuttering is very mild so I can't detect the positive effects from it right away but according to the studies about metronome therapy, this therapy is based on the truth that many of PWS' internal timing circuits are dysfunctional but they can follow external cues like metronome, music and others that can offer speaking rhythms for PWS: [https://www.reddit.com/r/Stutter/comments/m0fenz/metronome\_therapy\_an\_accessible\_selfdirected/](https://www.reddit.com/r/Stutter/comments/m0fenz/metronome_therapy_an_accessible_selfdirected/)