“…Previous work has shown that many influences on phonological patterns can be successfully modelled by scalar constraints, whose penalties are adjusted on the basis of some contextual property. Constraint scaling can account for a range of phonological patterns that depend on a scale or hierarchy, including continuous phonetic values (Flemming 2001, Cho 2011, McAllister Byun 2011, Ryan 2011), perceptual distance (McCollum 2018), the sonority scale (Pater 2012, 2016, Jesney 2015), trigger and target strength in vowel harmony (Kimper 2011), morphological locality in vowel harmony (McPherson & Hayes 2016), prosodic boundary strength (Hsu & Jesney 2016), distance from prosodic boundaries (Inkelas & Wilbanks 2018), lexical category and frequency (Coetzee & Kawahara 2013, Linzen et al 2013) and degree of nativisation (Hsu & Jesney 2017, 2018).…”