Muziic is an external music player youtube, this means that the player contains millions of songs that are on different videos from youtube. What you can do is listen to free songs and download them to your computer can also see the video from which comes the song. Recently the creator, David Nelson, 15 years old youtube agreed to work together. This new creation has attracted interest from investors and even a venture capital firm. Here I give you the link so they can download it if they want: