UPDATE: The concertina has now arrived and I have received the following e-mail:
"I got the concertina today!
The concertina looks more beautiful than I expected, and the sound...I'm surprised about it.
Because it is quick response, it catches nuance of player's expression.
I felt like concertina sang a song when I played first time.
I will play this long time in my life and treat it carefully.
Really thank you so much for making the beautiful concertina.
Best Wishes,
N.K.
I appreciates feedback like this. Thank you, N.K.