Ed Motta says that Maria Betânia 'doesn't even know how to play the pian', and the singer's fans rescue a video to deny it

A fan page rescued a video in which Maria Bethânia appears playing the piano after the artist received criticism from Ed Motta last Sunday (16). He disapproved of the public's reaction when the singer exposed a technical flaw that occurred during a concert in Rio de Janeiro. “The audience applauds. 'Wonderful', 'necessary', that kind of thing. A person who can't even play the piano. He doesn't know harmony, he hasn't studied music, nothing. I kn…