Peter T--You sound like you've got it--and I am really glad--
Thank you for sticking with this line of questioning till you got what you needed--it is the only way to learn about music, even if it seems unpleasant and messy--a lot of people don't have the tenacity to hang in through the flak, confusion, and periodic despair, and the result is that they get hung up on a question that they never quite understand the answer to, and never get any farther--
I am going to save this thread, because you managed to squeeze a lot of very useful information out of people--though most of is fairly dense and requires further interpretation--
It also shows what a wonderful resource Mudcat can be--
Aloha,
Ted