Thanks for commenting Jouni.
Glad you noticed my tone. I've worked hard on that!
You're absolutely right about the interplay between those pairs of notes. Funnily enough, I was aware of the way they interact, but obviously, I wasn't making this anywhere near clear enough in my rendition. It's a good idea to practice those notes in the way you suggest.
I have been told that when performing a piece, one has to make the expression employed, absolutely clear, by what may seem like, (to the player), an exaggeration. I've yet to learn this properly! I am a bit "lazy" about listening more carefully, to ensure that what I want heard, actually is heard. However, I am now approaching this issue. In fact, playing expressively, much more demonstrably, is my main focus, at the moment. Thanks for highlighting the issue for me again!
“Do what you can, with what you have, where you are”. Theodore Roosevelt