Music in TV advertisements

Music in tv advertisements is usually used as background sound to add a different feel and dimension. Usually, companies will use free music and loops for their ads because they don't cost as much and there are no complicated processes of paying royalties and expiration dates. Only the big companies with money could pay a famous artist for a song to be played in their advertisement.
So obviously for my advertisements I'm not going to have any famous songs or copyrighted songs in the background so I'm going to need to use free music samples and loops. Most cleaning advertisements of any genre use generic sort of music which slots in comfortably with the theme of the advert, so Mr muscle, with its superhero concept would have triumphant trumpet music and a more direct advertisement like Cilit Bang would have more of a straight forward direct generic piece of music.

Music in advertising functions in many different ways. They can implement different ideas and tones to an advert depending on what the music sounds like. According to my research there are a few types of cultural aspects which are targeted. They go as follows:

Entertainment
Music is sometimes just implemented so that there's  more of an aesthetic dimension added to the advertisement. This is the most generic use of music in advertising as it just adds a different dimension to the advert making it more attractive and interesting.

Structure and Continuity
Music is sometimes just used so that the advertisement makes sense, so basically the music acts like a sound bridge smoothing down the flow of the advertisement.

Memorability
Music can be used singularly for memorability. By using a piece of music which contrasts against the ethos of the advert, it can create quite a interesting and memorable aspect. Music is sometimes used in jingles so that people remember things such as slogans or phone numbers. In radio advertisement, jingles are used more frequently due to the fact that there's a distinct lack of imagery and visuals.

Lyrical Language
Because of the power of TV and film nowadays, advert producers have started to cleverly imply clever lyrics in to their music so that the advert comes across as more intriguing.

I find the depth and importence of music in advertising specifically interesting because i do music technology and find the area of music interesting.