Musical chess with Piano box, stool and board

Warning, the pictures have many mistakes that are corrected on the files. The main one is that I printed the wrong pawns, those are rooks I think. I understand nothing of music (it's a gift to a pianist) so I printed that and only went back to check after everything was done.

The other huge one is that the pieces are too big and you have to rotate them to fit on the chess. The file I submitted have the pieces at 80% of that size. I hope that's enough (I didn't want tiny pieces, but musical notes are not really a good fit for chess..)

It's a frankenstein of the 3 sources I'm linking. I hoped this would be a super quick put together thing but it took so long and it's so different from the sources that it would have been better to make it from scratch. Many things I would like to fix but I'm not printing that again, mistakes and all. I would like to specially improve correctly the chess pieces (I made a not so happy attempt) and the chess board because it came all in wrong heights in my printer.

Either way, you can also use the piano as a box itself. Everything but the board goes inside the piano, including the stool.

The connector on the lid doesn't work too well and barely holds things together. I appreciate if someone improves that.

Thanks to Albator_91 for helping me fix mistakes in the files, otherwise no one else could print!