Disclosure: (reason for my previous ask) After being a stage pianist and keyboard player for life, and paralysis took away this and ended my life, I still consider that overcoming the paralysis and being able to play a real instrument is something which I can be proud of. But your perspective is what I need here. Maybe I won't be able to play keyboards for too much time, and maybe your experience might help me to decide if I can still use just knowledge and make music via "mouse"