français vers anglais Technique / Génie Cinéma, film, TV, théâtre corporate video production

In a proposal for the production of a corporate video, this is being offered as an optional extra on the budget. It seems as if the basic production involves the use of copyright-free music, and this next-up option involves spending a little more to allow use of 'musique de genre', which might, for example, be chosen from the Universal Music Publishing on-line catalogue.

The next option on the list, slightly more expensive still, is to have music specially composed and recorded; and the final option, most expensive of all, is to use well-known mainstream music with high added value — and pay correspondingly high synchronisation rights!

I can't find an exact definition anywhere, though 'gnere music' does seem to exist in EN; I was considering 'library music' or 'mood music', but both of these seem to have other translations available, and in any case, the basic option (= copyright-free music) really already equates to one category of library music (i.e. the kind you buy outright for unlimited subsequent use)

Can anyone throw any light on this for me, please? (rather urgent!)