There is a little bit stupid story about it.
Long time ago I bought this WX7 for some reason. At that time I started to use Kawai K1 and Q80 to do something with them but I was very bad about keyboard play. Then I was very interested in this kind of wind MIDI controller, I thought I can play it better than the keyboard because I had some skill about the German recorder.
( All Japanese students learn soprano recorder at elementary school and alto recorder at intermediate (junior high) school )
WX7 was expensive but later the price was very dropped when the sales was stopped then I bought it about half price of MSRP.
Then I started to play the WX7.
However, K1 has no MIDI wind message capability, I got little bit poor result, especially with the sequencer Q80. I realized that wind controller send MIDI message data continuously and Q80 could not record MIDI data correctly. Finally I stopped to use, but I'm still keeping it because it is one of Yamaha's historical product. So I have no idea I use it again but this time I checked the functionality with Krome and confirmed the condition.
Anyway it is still in working condition then I took this video as a demo of WX7 :)