TONE SANDHI IN COMALTEPEC-CHINANTEC

Comaltepec Chinantec tone sandhi normally consists of rightward high t one spreading from syllables with a low-high tone pattern, and almost all sandhi outputs are non-neutralizing. This sound pattern may be und erstood by considering articulatory, aerodynamic, acoustic, and audito ry principles, in necessary combination with phonetically rooted histo rical forces, and the principles of contrast maintenance, economy of e ffort, and what is termed pattern coherence.