I don't know I'm right place but I connected my Casio ToneBank CT-670 to my DAW (LMMS 1.2.2) I can hear the notes I played but it does not stop. How can I set the DAW or the tonebank to sense my push and pull movements?
Most likely there is an issue with the note off signal. In midi you get a signal for the start of a certain pitch as well as a signal for the pitch to stop (although sometimes this also uses a start event with velocity 0).
You could write a little debugging application using the jack module in python to log the the events your midi keyboard sends.