Hi, I am using weddingwire.com and you can either add one song that replays during the whole viewing of your website or have a playlist and when your guests view a different page the song changes. Also you can RSVP online. The website is free and the reason I went with it is because you can delete a lot of pages that seemed unnecessary to me or add ones. You can customize every page by changing layout, page name, add pictures, hyperlinks ect. Almost all websites had "registry" and my guy did not want that on there, i couldn't find a website other than this one where I could delete that page! Good luck. You can sign up for weddingwire and check out the website feature...just play around with it and see what you can and can't do. That's the best way to see if you'l like it! Christy