In speaking with Satoshi Tokuda he shed a little light on the W-37 on the first set of questions and wait to hear on my comparison questions.
Hello Oscar ,? I’m happy to see your message.
I would like to answer about Suzuki W-37.
The instrument have natural sound and good harmony with strings instruments.
It doesn’t have big loud sound.
I recommend it , if you want to play with silent sound between pp-pf.
I will share as he responds or if I can get him to join us to discuss the W-37 here on Melodica World that would even be better.