Musicians and singers often teach or hold another day job to support a performing career. Offering lessons and performing for different venues is a form of self-employment. Financial and business experience or classes can be helpful for managing the business side of a self-employed music career. While a music career isn’t an easy one, for many, the joy of performing more than makes up for the sacrifices the art demands. In technical terms, singing is a physical process in which air traverses through the larynx, throat, and mouth. The vocal resonation in singing involves seven parts of the human body: the chest, tracheal tree, larynx, pharynx, oral cavity, nasal cavity, and sinuses.