The law and music intersect in lots of ways, and I’m not just talking about the Clash song. There’s everything from contract law, which applies to, well, contracts, to the health and safety issues that pertain to live performances. But in today’s world, there are a lot of interesting issues relating to music and intellectual property law, and to royalty payments in particular.
There really is no such thing as “music law” in the legal sense. Instead, if you want to practice music law, what you’re really saying is that you want to work with clients who are in the music industry. Basically, you’ll want to handle any issue your music industry client might come up against as, say, a musician, production company, talent agency, or licensor/licensee. This may include such varied areas of law as copyright, contracts, antitrust, immigration, bankruptcy, labor, tax, privacy, First Amendment, and so on.