For power users who need the absolute highest quality (up to 3000x3000px or higher), specialized web tools are often more reliable than the app itself. Apple Supporthttps://support.apple.com Add artwork to content in Music on Mac - Apple Support
The easiest way to get artwork is directly through the official Apple Music (or iTunes) desktop applications. download artwork from apple music
: Visit the Apple Music Web Player in your browser. Right-click the page and select "View Page Source" . Use Ctrl + F to search for og:image . The link following it will lead directly to the high-quality .jpg cover art used for that page. 2. High-Resolution Third-Party Tools For power users who need the absolute highest