Maybe one of the surface high-tone vowels was underlyingly high-toned, while the other was underlyingly toneless.
Indospheric languages are often toneless and/or highly suffixal.
Traditionally, a bell was melted down by the bell founder when it became cracked and toneless, and was recast as a sound bell.
The onset of the trough, on the other hand, is not bound to any particular syllable, and in particular is not bound to the first toneless syllable.
The facts to be presented here demonstrate clearly that, at the lexical level, grouping is a crucial footing principle in toneless forms, while prominence prevails in forms with lexical tone.
The dichotomy between toneless forms and those endowed with tone will play a crucial role in the proposed account of tone and its interactions with foot structure.
Toneless monosyllabic, and monomoraic, nominal bases exhibit the behaviour typically associated with minimal word requirements.
The problem is how to decide and ensure that in one context a floating tone/toneless mora results phonetically in a modified level tone and in another context a contour.