Thanks Brad! I was afraid of it, thanks for confirming. I have to say that, fiddling around with the Midi Stage web app that was created by a member of the forum, I am able to introduce not pitch bend but other midi controls like modulation and octave pitch, sounding via the Casio speakers. Not sure if this may be because this great app is re-routing midi. I'm out of my depth here, but happy to see that moving a slider on the web app actually altered the sound of the keyboard. Maybe someone can explain better than me