I've played pianos from PianoHaus Kempf when I was in Germany. They are a great shop. I think this workshop is a good idea too. The word "wing" is a literal translation of the German word Flugel for "grand piano", so it's, among other things about the differences between grand pianos and uprights. I'm also intrigued by "how you recognize a good instrument". That could be very interesting to hear.

Indeed that sounds like an interesting workshop.

I like it, when Germans translate Flügel into wing 😁

A wing 😄
It's probably an automatic translation. Here in the Netherlands we call it a wing too, vleugel. It has the shape of a wing, but I don't know if that's the reason we call it a vleugel. The lid does look like a wing too.

I checked out a piano at Thomann. The automatic translation into swedish told me the piano had 88 "nycklar" 🔑 🔑 🔑 🔑 🔑. 😆

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... feeling like the pianist on the Titanic ...