“…Self-efficacy relates to professional experience in adults (Papageorgi et al, 2009), and to music instruction in primary school students (Ritchie & Williamon, 2011). As Bandura's (1977Bandura's ( , 1986 theory predicts (Hendricks, 2016;Zelenak, 2020), musicians' and music students' self-efficacy beliefs about their musical skills are also associated with their accomplishments in previous performances (Papageorgi et al, 2009;Zelenak, 2015), feedback and support from others (Gill et al, 2022;Hendricks, 2014;Zarza-Alzugaray et al, 2020), observations and comparisons with other people's performances (Zelenak, 2010), and physiological and emotional responses (e.g., arousal levels and anxiety) evoked by performing music (Zarza-Alzugaray et al, 2020;Zelenak, 2010). Importantly, the quality of musicians' performances is predicted better by their perceived self-efficacy than by duration of music training and/or frequency of practice (McCormick & McPherson, 2003;McPherson & McCormick, 2006;Ritchie & Williamon, 2012).…”