This report provides an overview of the complexities of the Copyright Act’s provisions concerning music licensing. It also discusses four issues involving copyrights in musical works and sound recordings that have been the subject of recent congressional and judicial consideration: (1) extending copyright protection to pre-1972 sound recordings; (2) requiring radio broadcasters to compensate recording artists; (3) changing the standard used to calculate royalties for digital music transmissions; and (4) modifying antitrust consent decrees governing songwriter performance royalties.