AUTHOR=Brown Steven , Phillips Elizabeth TITLE=The vocal origin of musical scales: the Interval Spacing model JOURNAL=Frontiers in Psychology VOLUME=14 YEAR=2023 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2023.1261218 DOI=10.3389/fpsyg.2023.1261218 ISSN=1664-1078