Copyleft - allows anyone to reproduce, modify, or distribute the content as long as the resulting content maintains the initial rights.Creative commons: This occurs for content where the artist maintains copyright but chooses to offer public access that allows anyone to reproduce or distribute their content.Anyone can reproduce and distribute the content without facing any legal repercussions because no entity actually 'owns' the content. Public domain: Videos become public domain if the copyright expires, has been forfeited, has been waived, or couldn’t be applied from the start.
Downloading Music From YouTube Legal Type of Videos