Thanks for the feedback. I wonder if I should worry about the loop? See it does different things each time and it might just be that it decided to keep it really repetitive for you. That's the joy of the random stuff, I can't check and we will never know. I had not thought about it just looping the same thing over and over. It is in theory possible as I have not taught it not to do that. I wonder if that is what happened for you? Adding new songs is just a matter of constucting new elements so as I move it forward I can have new "tracks".
I was gutted about the levels I was able to include. I ran out of time. On Sunday morning I had made 0 levels and the reason it ends where it does is the Green ones were so very broken until the very last minute. There are 3 new cube types and 3 other floor blocks all full functional and included that I ran out of time to make levels to feature them. They are in the editor for people to play with. New levels I thought broke the definition of Polish so I have sat on my hands and not done them yet. It is very frustrating, but hey, it wouldn't be a Jam if you weren't gutted about something.