Beat Selling Website adhustment

Its hard to explain... I have a website [login to view URL] Wehre i sell my own mp3 instrumentals. But every time i have a new one i need to upload it manually on my hosting and than change the code of player to play it and stuff like that Here is what im talking about [login to view URL] Can someone make an app or something where i would upload the beat and it would show automatically on my page? To explain better. I would have like upload form where i would upload the instrrumental mp3, pick genre and player would be automatically on page where i chosen to be