In each folder I have the cover art, for example:
/Adele /Adele/21 /Adele/21/cover.jpg
cover.jpg is the album art. How do I embed that into my MP3s in iTunes?
Is it not a case of right clicking on the file and then choosing 'Get Info' and then clicking on the 'Artwork' tab and adding the image file? I use dbpoweramp to add images to MP3s and I've never had any issues with the artwork being in a subdirectory.