Guys I'm sorry. I did register to be informed when someone replies but never got those email notifications.
About music copyrights: I'm totally against the RIAA. They're a bunch of fascists. Music should be free. Artists have never made a penny selling their albums, only the major corporations have done so. Do your research, read, look on the net for proponents of other methods than the one offered by fascist RIAA. It was recently proved in Canada that file sharing had a POSITIVE impact on sales. This is a government research and I can send you the links to it if you are interested in learning more. Having hundreds of people listen to new music in a restaurant, music that is not commercial and that is not played on a regular basis on TV and radio will broaden those artists' audience. I know by experience that people ask who is playing and most people who ask will end up buying those albums or tracks online. The RIAA is a futile organization.
To prove my point there is an armada of artists and labels offering their music for free on the web. One example is
www.epsilon-lab.com with the great Eloļ Brunelle. Their artists rock and they offer their album freely, because they know it will give them a bigger exposer and that in the long run, it will be profitable.
MC licences will, of course, be sold to the restaurant.
Thank you for the other advices and sorry for having trolled the subject of my own post
Cheers,
Melkiades