This document is part of a series of white papers on various copyright issues. A copyright license is a contract to use a work in certain limited ways. Because copyright grants authors a “bundle of rights” over their works, rights holders can choose how other people can use any or all of those 11 rights without giving away their entire copyrights. They use licenses to do this. This section will address several ways that licensing is unique for music copyright and introduce four licenses that are common in this space.