In today's day and age, there have never been more opportunities for a songwriter or music publisher. Songs are published by companies of various shapes and sizes, and they are as close as a Google search. On Google, conduct a search for music production libraries or something similar. Each library generally has its own niche. There are varying degrees of quality and licensing terms. Of course, there are humongous music publishers such as Universal Music Publishing.

A music publisher's job is to get music into all media. There are in an incredible number of places thanks to the Internet and digital age; you may get music into streaming online content, apps, and any audio-visual medium. You may also try to exploit the music (exploiting is a super nice term in music publishing because you find a home for the music) in films, TV, trailers, promos, commercials, radio, video games, and all the new media or those that will...