Oh there are many wild ideas… I don’t know of any other pyramid shaped ones though.

For other shapes, I think The Line in Saudi Arabia is worth a mention, because it’s actually being built. Slave labour and other issues aside, it’s interesting that they attempt to follow through on such an insane plan.

https://en.wikipedia.org/wiki/The_Line,_Saudi_Arabia

This design project might interest you, but do notice that it is not currently possible.

https://en.wikipedia.org/wiki/Shimizu_Mega-City_Pyramid

There’s no mention of it in news in Denmark.

All the tabloids are pointing to this page as “source”: https://denmarkification.com/

It’s obviously a satirical site. My guess is that it’s made by an American.

There’s amusia, which is “tone-deafness”.

It’s one thing to not sing in tune or not remember a melody correctly, but there are people who can not even hear a difference between two melodies, even if they can tell other sounds apart. I would guess that’s somewhat similar, because I doubt these people have any chance in imagining what a melody sounds like.

GrayJay seems to work for that.