Well, eat a piece of Mustikkapiirakka anyway. It has pi right in the middle of it.
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We have a lot of different dishes that end in âpiirakkaâ, indeed.(itâs roughly the same as âpieâ)
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I had a professor who always said âitâs not Pi day, in the US maybe, here itâs 14.3â and I remember telling him once âyeah, but itâs pi day, not Le jour de Piâ
technically, as long as you say it in english (even better, american english), itâs fine. 
I thought I would try modeling a piano keyboard. I quickly learned that there is no âexactâ standard for the key dimensions and even the locations of the black keys between the white keys. This is modeled on a 1953 Steinway and Sons baby grand piano ⊠I plan to add more to it (eventually).
[ADDED] This was my reference model:
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I checked my fully weighted but electronic keyboard, and the width of the keys was very close to 4 feet. I read that white keys are 7/8 inch wide, which would make their total width be 45.5 inches. But then there are gaps.
How wide are the keys on your keyboard?
Wow, it looks good !
a bit of Vray at the end for the black lacquer effect ?
and because it's 2am, and Colin just sent me down the rabbit hole of learning super niche stuff on the internet for the sake of itâŠ
ahhh, imperials, I have to give you this one, 7/8 sounds better.
In the rest of the world, there is a German ISO : DIN 8996
it states that the piano should be 1227.2mm (+4mm maximum) meaning the white keys are 23,6mm
but apparently, they can be slightly thinner to allow a thicker gap. Blacks are supposed to be 11,5mm. I guess German engineering planned for the most exact production, but on a Chinese mass produced one youâll have higher tolerances.
dimensions d'un clavier - L'orgue de barbarie de Bernard construction plan stage midi perforation cartons
(french article)
This image shows a DIN8996 octave, 165,6mm. but the french apparently usually produce a 165mm, an organ 164 and in Asia some keyboards go down to 162mm.
In imperial units, they did their own method, rounding most of the stuff in easy fraction, because imperial is all about fraction (while metrics is all about exact value)
The Size of the Piano Keyboard
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I made the keys 0.875" wide with 0.055" gaps between them. The overall end-to-end of all 88 keys is 48.305". This puts the spacing of an octave at 6.510" on key centers. I made all of the keys the same, although this diagram suggests that they canât be that way. 
That sounds more accurate than I was suggesting!
WaitâŠHow did you measure it?
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