How do ad-people choose songs into new adverts?

Question

What I am wondering is how do they find the right one.

Do they have some kind of a "database in their head" so they always exactly know which one to use?

Or it there in their team some "special guy" that is there only for the music?

Answer 1

the scientific method allows marketing experts to write only the most annoying promotional jingles. While I am purposing an educated guess here, I'd say that any large marketing firm would have teams of 'jingle people.' Successful marketing campaigns are born from teamwork.

Personally, I wish I was an Oscar Mayer Wiener..