I really like the idea of UBS in v2 HTW phase because listeners can enjoy music for free but artists still get paid so I really can imagine that this will work as it is win-win for artists and listeners.

But this will only succeed if miners constantly putting their hashpower into this wich depends on the worth of MUSICOINS.

When difficulty rises and listeners don't have to buy Coins to listen except of a minority of users willing to tip some artists, what else do you see that keeps the value rising?