You can choose to provide information about who contributed to producing each of the tracks in your release. The options are Producer, Mixer, Engineer, Writer, Lyricist and Composer. You can provide this information on the release edit page by going to a track and clicking ‘Edit.’
Music services require us to provide a Composer and Lyricist (if applicable) for each track. The Composer is the person who wrote (came up with) the music. The Lyricist is the person who wrote the words. The Composer and Lyricist can be the same person, or different people. There can also be multiple Composers and Lyricists.
If there are multiple contributors to your track(s), you are responsible for paying royalties to whom they are due.