Use the YouTube Audio Library to get free, copyright-safe tracks to use in your videos! We’ve added hundreds of new music and sound effects already this year, available at https://www.youtube.com/audiolibrary And for more on how we’re thinking about Audio Library →https://goo.gl/dDq1Hu
Is that possible after using it u change the policies and I have to pay for it or I will get warning?? Or it's totally safe to use from utube library