Some additional information I can offer here. Flutes can also be fitted with a donut inserted into the second G key hole for assistance to the high E. Also, open G# flutes do not have this venting problem which weakens the E but most players do not use this system anymore. In addition, I recommend handling the keys F, E, and D as little as possible and instead, hold the flute by the barrel most of the time you are not playing it. This is because the edges of the pads can get damaged and the salts from perspiration get into the tiny spaces of the rods and can cause them to rust or corrode. Assemble the flute holding the barrel and the head joint only and this will help your flute need less repairs as we see this frequently in our shop. Much incorrect action is done on woodwinds when assembling because players are not told how to assemble correctly. The assembly of the foot joint is okay here if you just drape the fingers over the keys and not grab it tightly. In summary, handle or grasp the flute keys at a minimum or not at all. Your video shows you holding the flute on the keys for quite some time. Hope this helps.

Maybe not a famous piece but 'Chromatic Polka' by Ernesto Kohler is a study written for the flute

Can you make a video on how using different volumes of air affects flute playing?? Required air pressure of each register, or the required angle of air in each register/special notes? Super curious about your thoughts. I have learned that I’ve been overblowing my entire life. I have just begun thinking about how air angle could affect quality of sound.

I am finding the upper register easier now, I think the b foot needs a service again, my alto flutes low register sounds so much clearer 😅

I was wondering what brand flute do you have and I was also wondering if you can make a video of circular breathing