Someone else mentioned Spotify, you could try looking into Last.fm[1] (which queries from a number of different sources - spotify, youtube, soundcloud and user

Someone else mentioned Spotify, you could try looking into Last.fm[1] (which queries from a number of different sources - spotify, youtube, soundcloud and user contributed artwork). 1: https://www.last.fm/api/show/album.getInfo https://www.last.fm/api/show/album.getInfo - looks like it provides three image resolutions - small, medium and large.