Download Music with Album Cover: How-To Guide | Softorino
Easily] How to Add Album Art to MP3 on Windows, Mac, Android, iPhone
Do-It-Yourself: Add Album Art to MP3 in 7 Ways
GitHub - Blue9/AudioJack: :sound: A smart YouTube-to-MP3 converter that automatically finds and adds metadata/ID3 tags (artist, title, album, cover art) to downloaded MP3 files.