“…This is because they show that an inflected word's content and form fail to exhibit the kind of isomorphism that the morpheme concept predicts, and thus a holistic approach makes more sense (Stump 2016: 17, 22;Booij 2018a: 5, 18;Good 2018). Such an approach has been applied to various Otomanguean languages which exhibit complex inflectional paradigms, such as Mazatec (Léonard & Kihm 2010, Ackerman & Malouf 2013, Baerman 2013, Corbett 2015, Otomí (Palancar 2012), Chinantec (Baerman 2013, Baerman & Palancar 2015, and Amuzgo (Palancar & Feist 2015). A similar analysis has been proposed for Tlapanec, where tonal alternations as observed in Table 1 are assumed to be MORPHOLOGICAL (Suárez 1983, Tiburcio Cano 2017; that is, the tone melodies of verbs cannot be derived or predicted from the underlying representations of the stems and affixes, but rather the exponents of the agents are assumed to be non-concatenative tonal templates and different patterns of tonal alternations constitute different inflectional (or tone) classes.…”