Thank you for giving it another try, for your kind words and your detailed feedback, it really helps!
We did not manage to implement everything we wanted, like there are a lot of missing reactions and polishing, but we are planning to, right after the end of the jam :)
The thing with beaker - I think we created a little confusing situation, especially because there are no indication if you are doing things the right way. The idea was that you need to find three things (two in the kitchen, one in dining), look up recipe in the book in the kitchen, place these 3 things (soap, soda and vinegar) in the beaker scene and only after that it will become accessible to solve that puzzle. Oil and perfume can also be picked up, but they are not used anywhere (at the moment).
And regarding music piece - it should be accessible every time you click on bedroom drawer (after unlocking it), we will also make it more clear in the future.
Thank you again for taking your time playing our game :)