Also, if your wrist is completely loose when striking a chord, wouldn't it end up ON the keys as you pressed down with your arms?
I tried making it so I wasn't swiveling my wrist but that ended up putting more tension in my wrists, and my thumb felt strained and could barely press the note cleanly. Can you explain a Little more about the swiveling and why it's a problem or is that already posted here?
To clarify what my coach Thomas Mark has taught me, I will try. For the best results, God forbid that Piano Street would arrange for a film crew to show the world exactly what this man's technique genius is.
Absent that pipe dream, one needs to sit erect, not stiff, but relaxed, at the piano. Also, the level of the forearm should be equal/level to the top of the white key.
Then, while in this position, gently raise both forearms articulating from the elbow (about six inches). This is done with a completely relaxed hand and wrist, utilizing the natural gravity associated with such an action.
When you do this, the hand and wrist will fall into a natural arched position. That is the position you play with, and trust me, it will be a different from pianist to pianist, given their individual morphology.
Then, lower the wrist/hand back to the five finger position on the keyboard. Next, begin your soft staccato exercise which effectuates this one note at a time, with the entire arm resting in your lap after each note (relaxed, including breathing).
For the chords and the octaves, the methodology is the same, except one first allows the hand to open as it aligns itself with the particular chord or octave. Then, one maintains the structure of the arch (with natural arm weight/gravity) when it does so.
That does not mean "stiff," and it does not mean "soft." It means maintaining the integrity of the arched hand.
Also, as previously stated, it is not the same as playing an individual note with a collapsed hand, going from note to note.
As Thomas Mark teaches in his Octave Seminar, the first step in doing this, is to take it one scale octave passage at a time, while resting the hand in the lap in between. The same holds true for any chord strike.