Ah yes, I was pretty sure you were already aware of the things that needed polishing - and I completely understand the time constraints, whatever I was able to see...the efforts really show! Really shows.
Ahh I did reach that part! I was able to figure out the proportions (or I think I was) from that chemistry book for kids, picked up all items (and yes, was confused that the oil and perfume were also there, I understand it might make more sense in the future version) , clicked on the beaker, clicked on the ingredients from the inventory - everything looked set, except I just could not figure out how to proceed after that. Clicking on the ingredients or the UI button did not seem to do anything? I wonder if I missed something obvious!!
Ahh maybe I missed something with regard to the music-piece too! And I would love to play the completed version once updated - the narrative is like an interesting mixture of whimsy and mystery!