AJ Long and I had a discussion recently in which he brought up a technique he described as "The Pearly Touch" (More or less) He mentioned it in connection with the Op 90 No. 2 Schubert Impromptu (The one with all the triplets).
Basically the idea is (And AJ can come along and correct me on this if I have it wrong) is to play lightly and with a slight detachment of the notes so it isn't pure legato. It sounds simple enough but when he demonstrated the difference I realised immediately how important this was and that I had not thought about it at all previously.
The point of this thread is this:
What piano techniques do you know of that are at least a little obscure and really worth knowing about?
I ask because I want to know of them earlier rather than later in my development so I can incorporate them into my playing where it makes sense. I know this is a bit of a vague question but the example of the "Pearly touch" should give you some idea of what I'm after.
Also, for your consideration here's a funny technique a friend of mine showed me, not exactly the most practical but certainly worth seeing
It's called "shooting" the keys
Though there's quite a bit of creative technique going on...
The "Pearly Touch" and other techniques