This is almost there. First of all, your presentation is gorgeous. Wonderful settings and memorable character art. It almost feels akin to an old LucasArts game in some respects, visually. Music is fantastic, as well. The idea of a rhythm game mixed with a bit of an RPG is really cool, but man, I had some trouble with this tutorial. It might be my keyboard, but I feel like I can't block barrages at all. It's really frustrating. Would love to see this achieve full potential because you clearly have such a strong grasp on what you're going for. Will try again soon to see if I can get past that first bit, because it's kind of brutal for a tutorial.
EDIT: Literally after I typed this review, I beat the tutorial haha. The reveal of the second part of that was awesome enough to get me to bump this up a bit. I still think it needs some control tweaking, but there's something special here.