An Additional Contributor is any person/role that you wish to add as having contributed to a song's production.
Common Contributor roles include such roles as:
Less Common Contributor roles usually are related to instrumentalists such as:
6-String Acoustic Guitar
Electric Bass Guitar
During the album submission process, you can add Additional Contributors, however please be aware that not all music stores will accept this metadata or will display these contributors alongside your album in their stores. We allow you to provide them for posterity and for if any music store decides to utilize these roles in the future.