Thierry Bénétoux’s transparent “D2R2” accordion
French craftsman Thierry Bénétoux makes a good looking accordion, or as the case may be, one that’s hard to see at all. In addition to publishing accordion tuning and repair manuals, he seems to have created a see-through accordion, which might make diagnosing some repairs easier, without needing to open the box? There’s little toy ones like this, but this is plainly not a toy. Pretty fun.
I wish I could try out his fantastic Amoriental quarter-tone accordion, also pictured in this slideshow. Which is not only a great audio-experiement, but an aesthetic marvel. It has a chin-button to switch from standard twelve tones to a quarter-tone scale for non-western musics. He seems to have totally covered them in leather, done by a book-bindery no less.
Here’s a vid of Bénétoux talking about the Amoriental instrument. I wish they had somebody who really played it well to show it off.
Oh look (if you can see), this woman Nicole Renaud plays a clear piano accordion! Some of the pictures are neat.

Your first picture (after “pretty fun”) isn’t displaying here.
Fixed I hope, with an added link on the picture to a little video of it being played. Thanks for the heads-up!
I forgot this other one: the See-Through Chemnitzer Concertina by Mike Mieja of St. Paul, Minnesota. Supposed to sound quite good, but the plexiglass makes it heavier than traditional wood.

Oh, and I think Thierry Bénétoux may have gone into production with his D2R2 (and D2R3 now!): See the line-up of see-through old-fashioned space-age diatonic accordions.
