Soo...This was pretty good.
For the most part I made it really far wihtout any help but around the piano puzzle I had to peek in to the comments to somewhat put myself back on the right track. By the time I got to the star puzzle I had already succumbed to using the tab button out of despair hehe
The game means well but the visual style really stressed my eyes and some clues demanded a lot of effot to be spotted, althougt I'll admit this could be due to me being more used to playing games like this in a more cartoonish style.
I found what I think could probably be a little bug (?)...When I figured the piano puzzle I couldn´t unlock the gem despise being extremely accurate with the Chords...I had to reload the game and then it worked just fine
The place reminds me of an old hospital thrown together with and asylum.