There is a list of songs that content ID knows about here: https://www.youtube.com/audiolibrary/ad_supported_music https://www.youtube.com/audiolibrary/ad_suppo

There is a list of songs that content ID knows about here: https://www.youtube.com/audiolibrary/ad_supported_music https://www.youtube.com/audiolibrary/ad_supported_music It also looks like they are planning on releasing some tools to better track how people listen to different artists and songs on YouTube: http://www.billboard.com/articles/events/festivals/6509178/youtube-previews-new-data-tool-sxsw http://www.billboard.com/articles/events/festivals/6509178/y...