Thanks for your reply @ylich, to my eye there is a cut/blend at 0:09, right after the introduction.
To be 100 % sure that it is a live performance made for the contest, you must have all that in one take. This is for avoiding contestiants just taking an old video and putting the words "First exclusive openmusic contest..." in front of it. I think you did an honest performance by the way. But I can't apply double standard and judge one cut video honest and another not. So please no cutting at all. But so far there are only two contestiants including your entry, if it remains that way you will earn a reward no matter what. Thanks for your understanding, yours, @senzenfrenz