This document provides an introduction to music copyright. It explains that copyright protects original works of authorship and includes both musical works (songs) and sound recordings. The author's rights include reproduction, creation of derivatives, distribution, and public performance. To determine if permission is needed, one must understand the concepts of original authorship and fixed expression that define what is protected. The document addresses whether permission is required for sharing music, using samples, playing covers, and making promotional mixes. Key exceptions to copyright protection are also noted.