If it is not profitable, it does not constitute infringement. We know that the songs on the radio are all played publicly, but if it is not for profit, it does not constitute infringement. This is within the permission limit< /p>

I think this issue does not involve the so-called "fair use", because fair use does not require payment of compensation or notification to the author, but it must include the author's name and the title of the work. For example, if the literary work is within 50 words, then It is a fair use

We just judge it based on the simplest profit or not. If it is used in some advertisements, plays, and parties, the author must agree to pay remuneration

I have one more thing to add. I feel like you are talking about the issue of personal rights of copyright. From this point of view, even if it is not profitable, it still constitutes infringement.

I think if it is a variety show, it is It seems to be the same song, so someone must be paid, or at least have the right to be signed