From the repository copy: groovr.getSongFile songs[0].SongID, (err, file) -> ### file.url is an mp3 url you can download the file object also

From the repository copy: groovr.getSongFile songs[0].SongID, (err, file) -> ### file.url is an mp3 url you can download the file object also contains some meta info like song length ### That indeed confirms what the Grooveshark developer was saying on the DCMA notice comments. Even though the API doesn't provide the MP3 file directly, it's trivial to get it through this function call.