bgrisso
·Thanks, to recap: blue scale and open 6 in the 60 seconds track is ok for early 40's, while closed 6 in the 60 seconds is more likely after 1945?
I'm not aware of this, but perhaps others have done this kind of research and can share. As I said, several examples in Sala with closed 60s seconds and early 40s. If I can find multiple examples in just a few minutes..........to me that's an open question that requires more study.
The nice thing about the forum is that each of us have done deep dives on some of these issues and can pool that knowledge. I haven't done it on this particular topic, which is why I'm not making absolute statements, which I would almost never do with UG anyways.









