Thank you! Yes some of them generate really mean patterns, they are based on the seed of the world you got.
I've tuned it down a notch before release. I'm thinking when there's more Rogue-like mechanics, the first levels will have simpler ones. And once you are a few runs in they will all be a bit harder.
Happy you liked the game <3
For sure! I love me my rhythm games! I look forward to see what you've got in store!