@trus : if you search in the forums of pianoworld.com, you can find there a lot of information about your specific problem. According to what I read there you shouldn´t have any problems with Fur Elise concerning any copyright infringement. You are just one victim more of the ridiculous unpersonal robot scanning all uploads for possible infringements. Your problem rather is how to push through your right to publish your Fur Elise performance there, because at YouTube no human being will care for you, but a stupid robot blocks you. Your individual interest, according to what I could read about such cases, is obviously not as much worth as the interests of the companies which convinced YouTube to stricktly block all copies of their music, which unfortuntately also blocks (wanted or unwanted) all competitive recordings. As the scanning robot found your performance to be similar to one which a strong company wants to market, yes, you are just shut down, although you didn´t infringe any copyrights. So, seriously, congratulations! You obviously played very well, then!