Database for website

Hi, I have my own website that I use to get Mobile Dj work. Weddings Birthdays things like that. I'm looking to add a database of my music library to this website. What I want is a page on my webite with a list of all my songs. I then need clients to be able to log into this page using a password provided by me. Clients should then be able to browse the entire list and add songs to a playlist for their event. They also need to be able to add songs to a playlist that may not be in the database. This playlist then needs to be forwarded to my email address with all the client information attached to it. I would also beed to be able to update this list of songs myself. Thanks Paul