Well I suppose if you want to take the in-depth, meticulous, scientific interpretation… I was for the simple knowing the notes and being able to play them up to speed, in time, without any “glitches” route. With a little amount of ornamentation for some color.
Sure. There’s always new things to learn with the music. I have no doubt. I respect what Peter said, and well this really is a ‘how long is a piece of string’ question, because the answers are really “longer” or “shorter”… Depending on one’s interpretation of simply “learning a tune.”