What are you seeing that’s wrong?
We definitely look at folder structure, but we don’t have options that say “ignore tags” for example – everything is designed to be automatically imported into our system, and kept in layers, which you can configure to show the data you want.
This article is a little old, but there are some more details here.
It’s possible Roon found your artwork, but used ours instead because it’s higher resolution – that’s the default behavior. If that’s the case, you can fix this by changing your cover art settings in Settings > Library > Import Settings.
If we didn’t find your art, you should let us know what the file and folder names are – there are some conventions we follow for smart handling of front covers, back covers, liner notes, etc.
This isn’t really how Roon works – you’re thinking about this like files on a hard drive, where Roon is designed to identify and understand your music, and obviate the need for this kind of manual organization, where you might have to make a decision about whether a given artist is classical or not, for example.
In our composer browser, for example, you can choose whether non-classical composers are shown at all.
You can also pick whether to sort by first or last name, and you filter by period, country, etc. But of course, all this functionality requires that your content is identified by Roon.
Hope that helps!