I love Bach. Can't play your youtube here, and not sure off the top of my head which rendering this is, but I can say that when I played piano, I would get out my Bach books and muddle through his pieces. Never did them entirely up to speed, but there was something very unique about playing them. The left hand is playing as rigorous a melody as the right (unlike with other composers, who use the left hand as a "bass line", more or less). He converges the melodies, keeps up the momentum, and doesn't rest. It relentlessly plows on, and the effect, if I may say, is orgasmic. On the surface the pieces seem intellectual and mathematical, but there is an underlying passion driving them (imho).
