tstermitz wrote:
(2) If the right ring finger moves ever so slightly, you lose the C notes. Sealing the D hole takes some practice. I notice in Jem's video that his right ring finger moves a little when he reaches for the C, despite which he successfully plays the C notes.
That's the *E* hole, closed by R3 to give D. Tone-holes are named for the note they give voice to when they are open, defining the tube length/pitch. One cannot avoid the ring finger moving somewhat as you operate the foot keys, as you observe in my videos, but it is possible to keep the E hole sealed nonetheless. You just have to work out how for yourself with your hand on your particular flute.