tones and creaky voice
One thing I haven't been able to decide is how to handle the tones. That is, whether to use a pitch accent specifying a contour for the whole word (like Japanese) or have each morpheme supply its own tone, or some combination of the two. Then there's the interaction with creaky-voiced vowels.
Speaking of which, they all come from *b, according to these rules:
* as coda, *b > ~V (ad-hoc notation for creaky V) with the vowel position the same as the nucleus.
* as onset after coda, *b > ~V with the position the same as the V preceding the coda, the coda becoming an onset. In other words, *V1CbV2 > V1C~V1V2.
* as initial onset, *b > ?
* between vowels where the 1st vowel is long or a diphthong, *b > 0 with the preceding vocalic mora becoming creaky. In other words *V1V2bV3 > V1~V2V3.
* between vowels where the 1st vowel is short: *b > 0 and possibly the tone of the preceding vowel becomes low.
Speaking of which, they all come from *b, according to these rules:
* as coda, *b > ~V (ad-hoc notation for creaky V) with the vowel position the same as the nucleus.
* as onset after coda, *b > ~V with the position the same as the V preceding the coda, the coda becoming an onset. In other words, *V1CbV2 > V1C~V1V2.
* as initial onset, *b > ?
* between vowels where the 1st vowel is long or a diphthong, *b > 0 with the preceding vocalic mora becoming creaky. In other words *V1V2bV3 > V1~V2V3.
* between vowels where the 1st vowel is short: *b > 0 and possibly the tone of the preceding vowel becomes low.