I read a post this week describing how one can use the piano roll to modify midi sounds through the controller pulldown menu. I was playing with it and my Ketron SD2, and had a basic question. After selecting "Control" from the View/Edit menu, I clicked on one of the pulldown options, "all notes off". In the lower editing window in Piano Roll I drew simple lines going from 0 to 127 and back over several bars. BIAB showed a series of ascending or descending bars corresponding to the line I drew. I then played the song and the bars disappeared and nothing changed. I confess to not having read the manual on how to use the piano roll midi control editor, but shouldn't the bars have remained? Saving the file first prior to playing did not save the edits. Just curious to hear what I did wrong.

Thanks,

Bob aka jazzwombat