To become a freelance composer, you will want to understand contemporary composition and music production. You may want to get a degree in music to gain knowledge and make professional connections. A freelance composer can break into the industry by sending their portfolio to potential clients like music libraries, publishers, advertisers, and other organizations. As a freelance composer, you will need to promote your services and apply to freelance opportunities. By creating a profile on Contra, you can create a portfolio and apply to freelance opportunities.