Lack of music folder on external memory?

First off - thanks everyone!

Conversion Box - Yep, in fact that’s where I created my “artist” folder, inside which I copied the album (there were no subfolders in MSC)

So I switched from USB mode “Auto” to “MSC” then plugged in the player.  It now shows up as two drives (before it was one) and on the later of the two was a single “music” folder…inside THAT were “Audiobooks”, “podcasts”, etc…moving them back to the root only resulted in a second set being recreated inside MUSIC.

One other thing…I can now, no longer see any of the music on the internal memory when I had the USB setting of “Auto Detect”.   Does “Auto Detect” defaut to MTP?  I use Windows Media Player to rip, then copy them using Windows Explorer (like I would to a thumb drive).  My concern now is - are there two formats on this (the older ones in MTP and the newer ones in MSC)?

Thanks again