Libet's experiments suggest unconscious processes in the brain are the true initiator of volitional acts, therefore, little room remains for the operations of free will. If the brain has already taken steps to initiate an action before we are aware of any desire to perform it, the causal role of consciousness in volition is all but eliminated.
Oh really? So I guess my brain built up electrical charges before I decided to study guitar seriously in 1976? Yah, who would know. I don't run around with electrodes on my head and some guy in a lab coat following and shouting, "Would you please slow down?" Heh, screw you -- no free will, remember? What's it worth to yah?
What Libet discovered is what every guitarist already knows. Your fingers learn a lot of things so you don't have to think about them. The fingers learn chords, scales, melodies, picking patterns, keys, modulation, tempo, rhythm and a boatload of other things that come together into what we call a tune. Some people are born with these abilities, and we call that talent. Most of us have a little bit of talent, so the rest comes from steady practice, or in the vernacular, hard work.
But this is simply suspending free will to make things more efficient, which is an act of free will in the first place -- deciding to suspend it. This is a very simple example of exercising free will.
A greater exercise in free will is whether to believe something or not when the evidence isn't all there. For example, I believe Paris exists in France, although I've never been there. I believe the sun will rise in a couple of hours, although that event has not yet occurred. Contrasting with this is skepticism. I don't have much to go on as far as what Paris is like, so to get the full experience, I'd have to go there. What will I experience? Danged if I know. I could speculated, but that's just guessing so I doubt the truth of the speculation. I am skeptical about speculation because, well, I chose to be that way. Also, every time the sun comes up I feel good. Cool, we haven't completely screwed things up on this planet, and the amount of free will exercises behind that feeling is so broad and deep that I don't have enough time in one life span to go into it.
But as far as pushing buttons or down on strings against a fretboard, or plucking those strings just so, yeah, that's automagical thinking, like breathing or pumping blood or blinking eyes, all of which can be controlled through free will. Yogis do it all the time.
Heh, I don't think about doing a C chord followed by an F and then a G. Nope, I think about a chord progression in a certain key, and if I move those chord forms up or down X number of frets, I've just modulated to another key. I bet the old noggin is firing off like the dickens during this time, but my free will determines:
A) What tune is this?
Should I smile at that girl?
C) How much is this gig worth anyway?
D) Maybe I should hang out afterward.
A guy could get lucky -- and oh boy, that opens up another bunch of possibilities.
Anyway, consciousness is way more complex than pressing buttons. Free will has a lot to do with it. If free will is an illusion, then I'll have to point out that the whole shebang is an illusion, according to those Yogi folks. But hey, when you think about it, we only know reality through the senses. Of course it's an illusion, by the definition of illusion, sort of like how this post is an illusion. I guess it's just electronics and pixels, not really anything at all.
So we're back down to only having doubt. We doubt, therefore we are.
Yeah, but that won't get a guy laid. I'll guarantee you that.