Visually appealing and very well done concept. I saw this on YouTube already and every time I see this again - My eyes will be open-up again - It's just awesome. The 'sense' of touch felt weird at the start, but you'll get used to it very quickly.
Since I compose and arrange music myself, I can pretty much understand (most of) the features. And I really like it. I've created my own rythm-based experience but it's completely different than yours.
In any case, well done! Soundscape VR definitely has my vote!