I know in my car I can slow down and come to a stop. I can slam on the brakes, skid for a short distance with quite a squeal and stop. I can also stop my car and start it. Once in a while I will let my car coast slowly up to a stop sign and stop close to it. Unlike my car when going everything goes. When it stops, everything stops including me. With my keyboard I stop but it can keep going. I can stop some parts of it while others are still going. I can go with it or not with what ever part of it is going or stopped.
What have you got in mind Barry when you say an abrupt stop. Slow down a bit before stopping? Kind of slow down a tad and then speed up when approaching a stop. Over here in Chicago land that approach to stopping will get you a ticket sometimes. It is frowned upon.
With my KN keyboard I can slow down before I stop completely. As an abrupt stop can be accomplished by playing with one hand while slowly turning that round tempo knob just to the right of the screen. With two hands playing it takes a bit more of finesse. There is an indentation in that round knob for that very purpose. The end of the nose fits very nicely into it for turning it with the head motion. A little tricky at first to get the motion smooth of course.
I might suggest one thing however if you bare with me. If you have a runny nose with a cold and then sneeze while performing this function it could become something that is not very pretty. Did you ever try to clean up a broken uncooked egg on your keys or board? It seems to run away from you as you try to clean it up. It slithers in the seams and cracks of the board. However snot has a creamy foam substance also because of the pressure behind a sneeze homogenizing the stuff. I find just sucking up the stuff with the mouth before exerting any kind of cleaning pressure to it can save a great deal of time and frustration.
I have been in this keyboard game for many years and know the answers to most of the questions you younger players come across. You might call old Gramps a harbinger of knowledge and tricks of the trade. Just ask Bill or John or any of the old timers like Larry and they will conform it.
Grandpa Doug
Ask Ruthie and you will get some kind of an answer also.
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Grampa Doug