YouTube Music can now cast your uploaded songs to a smart speaker even if you don't have a premium account. 9to5Google has confirmed the welcome change, which is merely one of the many transformations the app has gone through and will keep on going through after Google Play Music’s shutdown. Google rolled out the ability to play your own music files, regardless of where you got them from, on YouTube Music earlier this year. However, as Ars Technica noted a few months ago, the app’s free tier didn’t come with the ability to cast the songs in your library to