Apple Music

• Open the Apple Music website.
• Log in to your account.
• Open the Developer Tools window (F12).
• In the Developer Tools window, first locate the Application tab, then locate and expand the Cookie in the left panel, and choose https://music.apple.com.
• Type media-user-token in the filter bar, and copy its value.
• Open BetterLyrics and go to the Playback Source settings.
• Input the copied value into the Apple Music media-user-token setting, then click the accept icon on the right.