Many musicians working in popular music genres, like hip hop, rock, and folk, are self-taught. Musicians and singers need a great deal of skill, tenacity, and sometimes luck to earn a living from music. While they may find work through competitive auditions, most need to promote themselves to find consistent work. Gigs (or performances) are often scheduled in the evenings, weekends or holidays and can require travel away from home. 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.