Create a wav directory with multiple user

Hi, is for a new website. I dont need design only create system and add plugin if is need Here what i want to do This new website is for people who want share music wav file for creating power point file 2 part of the website 1- normal user without account. They can come in directory and look diffrent category of music ex: http:[login to view URL] And inside we see the list of category rock house nature etc.. with the number of song in each category They can play the music to besure they like it. And if they like it the can download the file. Each time a music was downloaded count was update and we show this count with each song. Search option will be great for this section 2- User who want to add music. They must open an account and after when user login they was redirecte to the upload page to add her wav music. I dont want to redirec them in admin page is not good. In this page they can upload file choose category and add title and description of her file. They need a page where they can edit file he send. And see how much time the file was download. Sorry for my englisj i am a french canadian