“…Estimations on the prevalence of musiccolor synesthesia within the synesthete population vary considerably, ranging from 18.7% , 25% (Rich et al, 2005), to 41% (Niccolai et al, 2012). Regardless of the exact prevalence, music-related types of synesthesia remain under-researched in relation to other types of synesthesia, leading to calls for future studies to address their development, and move beyond a focus on the most commonly studied ordinal types of synesthesia, such as grapheme-color synesthesia (Hubbard, 2007;Meier & Rothen, 2015). Since these statements have been made, several researchers have taken up the challenge and are beginning to address this imbalance (see, for example, Curwen, 2018Curwen, , 2022aCurwen, , 2022bGlasser, 2016Glasser, , 2018Glasser, , 2021Itoh & Nakada, 2018;Itoh et al, 2017Itoh et al, , 2019Lima, 2019).…”