Antagonistic muscular co-contraction (AMCC) in piano pedagogy: An assessment of accuracy, consistency, insight, and terminology

This systematic and critical content analysis assessed and consolidated piano pedagogy on the topic of antagonistic muscular co-contraction (AMCC). A central contributor to skilled movement, AMCC nevertheless remains an enigmatic and controversial topic among pianists. We identified 81 English-language pedagogical works written between 1597-2020 discussing AMCC, from which we excerpted 1,027 potentially relevant passages. We assessed each passage for clarity of terminological usage, relevance, and (dis)agreement with Ashkenazi et al.’s (2025) prior empirically-based model of AMCC. Pedagogues’ discussions of AMCC were frequently inaccurate, inconsistent, and at times dangerous. We observed no significant improvement, and some significant decreases, in quality of pedagogical discussion over time. Still, pedagogues arrived at key pianistic insights about AMCC that to now have been largely absent in published science. Despite clear weaknesses in the genre, pedagogical inquiry about AMCC is therefore indispensable because of its unique contributions to understanding AMCC’s nature and effects on the exceptional challenges of piano playing. This study establishes a comprehensive, critical perspective of piano pedagogy on AMCC, bridging Ashkenazi et al.’s (2025) prior model with practitioner-led discovery.