Back in the day, companies had original product jingles for radio and television written by their advertising agencies. It was unheard of to have popular music playing in the background on advertisements for everything from computers to cars to cleaning products. When bands started selling the rights to their music for the purpose of marketing things to the public, it was considered selling out. Of course, money talks (as does exposure!) so over the past couple of decades jingles have become more extinct and pop music, either well-known or not-yet-discovered, is the soundtrack of choice. Musicians are no longer accused of selling out; it’s a point of pride to be…