IntroductionMusic performance anxiety (MPA) can substantially impair musicians’ learning, performance, and psychological functioning. Although mindfulness- and acceptance-based interventions (MABIs) have shown promise for MPA, their pooled effects, boundary conditions, and mechanism-related commonalities remain insufficiently understood. Grounded in a dual-path explanatory framework emphasizing decentering and attentional reallocation, this study examined the effects of MABIs on anxiety-related