Hi,
Just wondered if, as it's named “coarse”, setting the coarse value resets the fine value. Is it? If this was just named “higher bits” and “lower bits” I would just guess it's a two step composition of a 14 bits word, but as it's named “coarse” instead of “higher bits”, I feel to guess it's different …
I looked at “General MIDI System Level 1 Developer Guidelines”, but it says nothing about it (or I overlooked the relevant part …)