I use a standard keyboard/piano bench (#5 in your list) for classical & recording GT lessons. But I recommend getting and always using a strap for anything except classical. I even use & recommend a strap when sitting down. If you ever want to play or perform standing you will need to be able to play confidently & comfortably using a strap. Using a strap is the best way to ensure proper mechanics & posture if you are sitting or standing.
Most of my practice & playing time is standing, with my standing computer desk if I'm using my computer for the process. The only exception is classical style & recording lessons.
Hope that helps!
hello chris, thanx for your reply. i also use a strap even while sitting. i like a couch 3" wide padded one. i both sit and stand. i found an unused ottoman in the house, and moved it to where i want it, beside the bed looking out the window. i use a resin folding chair with a good molded seat for outside on the back porch. both use a pillow in the seat for both raising and more padding. see foto of ottoman. i do 3 half hour practice sessions every day, the first and second tend to be sitting, and the third, playing/singing, is standing.
but which keyboard bench do you recommend, should i decide to buy one?
thanx dale kirksey usa