Before the blind/helper Gabi sings in public

According to the Rabbi, is it forbidden to hear the voice of a woman singing, even if there is no fear of reflection? I heard Rabbi Shlomo Fisher say that wherever there is a fear of reflection, it is permissible. He relies on the last Ritva in Kiddushin, which says that even if there are explicit rabbinic prohibitions, it is permissible to transgress them wherever there is a fear of reflection at all.
(The reader of the Ritva may be surprised, the Ritva speaks only of complete righteous people who can be confident in themselves, how can we, the little ones, learn to do something. According to the Zil Bater Temah, the Ritva says that only complete righteous people are permitted in a place where contemplation and pleasure belong to them, if they are confident in themselves that they will not fail, but precisely in a place where pleasure and contemplation belong, a righteous person should be permitted, because an ordinary person cannot be certain that he can resist his urge, and only a righteous person who knows from experience that he can resist his urge can permit. Thus, God allows every person, when it is easy for him, to contemplate, for he knows with certainty that he will not fail, and what is the difference between a righteous person and a wicked person in this matter, and therefore only a person whose singing is likely to cause him to contemplate and enjoy lewdness, is prohibited from listening.) I would appreciate the response.

Where did I write this? And from the above Maharitava, the conclusion can certainly be drawn. It really doesn't matter who he is talking about. He established a principle and it is applicable to everyone.

“Besides their servants and their mothers, there were seven thousand three hundred thirty and seven, and they had singers and singers of their own.…And the priests and the Levites and some of the people and the singers and the gatekeepers and the Nethinims lived in their cities, and all Israel in their cities.”