If someone were to be playing a racing simulation game like Gran Turismo, doing laps and honing their skills, a person watching might get insanely bored, but the person playing could be in the zone, forgetting all their troubles, and highly focussed, while having a great time... This is what I think it's like to hear someone playing Bach, vs playing Bach yourself. I promise, it's incredible. It's not just some melody you might like to hum along to or not - there is so much going on on so many levels. I wish for you to experience it.