>> go to Album Cover Artwork for a particular track and Paste from Clipboard.
>> the Album Cover is somehow tagged by Album and artist. If I have several tracks from the same artist MC recognizes only the first Album Cover entry so I wind up with the same lyrics for two different songs.
I raised the same issue a few days ago, because the automatic renaming messed up many hours of Cover Art/image work until I settled on a workaround. It's a by-design feature of MC and undoubtedly is terrific for many users with simple organization of tracks by Arist - Album. But I have 72 thousand (and growing) music tracks that can't be organized this way. (And, I love your idea of adding sheet music, probably another 10 thousand "tracks" for me.) So I'm hoping to get more control over MC's image file naming and assignment.
The "problem" happens when Pasting in the Cover Art because the image on the Clipboard has no "name" and MC has to name it *something* when creating the image file. My request is for control over the naming, using the same method provided to Rename Files From Properties.
WORKAROUND: For images that will encounter this naming conflict, separately Paste/create the image file, not via MC but using Windows Paint or similar, so the image file can be given a unique name that is NOT Artist-Album. (Or paste ONE image into MC, then using a file manager, locate the file and rename before pasting the next image, etc.) Then go back into MC, go to the track, open Tags, switch to Image, locate the image File on your computer, and select it for the track -- LOTS of cumbersome steps.
This works because the new image gets a file name that is NOT what MC will use for automatic naming, so it won't be nuked every time a new image is Pasted into the same artist/album combination.
It's also possibly possible (depending on how you need to organize the actual media files) to prevent this by organizing via lots of folders so same-named image files don't collide. But this is tail-wagging-dog, organizing media files just to prevent image problems; much better would be to control image file naming to work with any media file organization.