Hello All: I have some music placed in several non exclusive libraries, until now I have prevented my music from being included in the YouTube tube content, because I have heard that it can be problematic and it is an option that I do not quite understand, however, a new Non Exclusive library, where I am going to place my music, is asking me to include my music with this option and it tells me that it can be very convenient. What would be your advice? Is it a good option to have more income? Could this cause me problems with the other Non Exclusive libraries? Thank you very much for your advice.