Musictube is basically a youtube player and allows you to listen uncountable songs through youtube. But, it let you use it in a traditional way. It plays your tracks on the original order and keeps the lyrics and artist pictures. It supports an editable playlist, which you can create in seconds and let play for hours. Besides listening to plain studio recordings, you can switch to "live mode" to listen (and watch) live performances or to "cover mode" to discover surprising new versions. You can always show the video as a thumbnail or full-window.it is an user interface app. ENJOY!