Thank you for your feedback!
We are and continue to work very hard on the demo on a daily basis and we will have a new demo with a few more and new features next week!.
As for some of the things that you have mentioned in your post, some have been fixed and others we have them very present as you are not the first to mention them.
The music issue is one of our most painful ones. Half the player base loves half hates it. We can only say that NO it won't be Bach forever. Only for the demo. We have our own compositor and her work may make it into the Demo very soon so stay tuned.
Thank you so much for your time and for writing us!