One thing about music (and, by extension, musicians) is that what we create has a unique way of connecting to people. Our brains are designed to hear music. Music triggers memories, music helps us identify ourselves as members of a community, and music is an important flash point for conversation. That gives musicians a lot of power. In the previous model, most of that power was ceded to record labels. Twitter is one of many tools out there that allow musicians to connect directly with fans — to “build their brand” — which is, of course, GOOD.