All very good, Dave, but the same kind of questions keep coming up in thread after thread. All of this (in this particular thread) is in aid of answering the question "What key am I in?" If the answer is too simple, it merely raises more questions. A good, complete answer is liable to get a bit techical. To some this is fascinating and enlightening. To others, it's highly tedious. Nevertheless, one does try to answer the questions as they come up.

Don Firth