Database for users's compositions and transcriptions

Hi

I'm about building up a site for pianists and similar musicians. :)
And a guy in my team had the idea to create a database where the users can upload their compositions and transcriptions. I think it's a great idea. But i don't know how exactly to realize it. :/

I think that the database maybe could have different menus. Like: composer, style, year, opus, ... whatever

Any ideas?

BTW: You can give our test site a look here: http://xardas.xglusers.de/drupal

Best wishes, xardas