The music industry consists of four main parts: writing music, recording music, publishing music, and live music/artist management. The recording process involves an artist finding a record label, writing or choosing a song, recording vocals and instrumentation, and distributing the recorded music. Songwriters and publishers each receive 50% of revenue. Live performances are now a primary source of income for artists. Record labels oversee marketing, recording, production, promotion, and distribution for artists. They have departments for A&R, artist development, promotion, publicity, sales, and administration. Major labels are Universal Music Group, Sony Music Group, and Warner Music Group. Independent labels include Domino, Rough Trade Records, and Apple Records.