Harmony Precedence During Snippets Playback

Hi,

Do I understand correctly that there are two possible sources of Harmony during Snippets playback  -  

1.   The default Snippets page Harmony parameter

2.  Snippets which themselves contain a Harmony parameter

and the rule is that in the presence of a currently playing Snippet-with-Harmony the Harmony of playback comes from that snippet (so long as it continues to play) whereas  in the absence of a currently playing Snippet-with-Harmony the Harmony of playback comes from default Snippets page Harmony parameter?

If that's not right, please correct me.

Now, assume we stop any-and-all currently playing Snippets-with-Harmony while playback is taking place.   Will the  default Snippets page Harmony parameter at that point take over from it's own beginning, or will it take over from where it would be as-if it had been playing/looping from the beginning of playback?

I don't see anyplace where I can directly see and edit the default Snippets page Harmony parameter.   Sure, I can copy/paste into it, but it doesn't seem that I can view it, or edit it directly.   Is that possible?   

Finally, is it possible to view the currently playing snippets harmony regardless of the source of it?   This , to me, is the most important need.

If it is possible, I think I need to be told exactly how to accomplish it.

Thanks.