Food Orientation

I have a theory about food orientation. I think foods taste slightly different, or I should say, the eating experience is slightly different based on the direction of intake.

For example, asparagus eaten leafy side first is different than stalk side first. I prefer leafy side first because it tastes more bitter, then the stalk is crunchy and does not leave the bitter after-taste. 

Another idea based on the first is multiple ingredient foods relative position. I find that a sandwich tastes different if you flip it upside-down and take a bite. The relative position of the layers creates a different experience.

In choirs, a good director will blend a SAT or B section  into a smooth gradient of vocal tone and sound quality. This helps the singers blend and match to create an overall more beautiful sound. I wonder if this analogy can apply to foods. Is there a most beautiful order to assemble then devour a sandwich?