Like how tf does he make his chord sweeping sound like alternate picked linear runs?
What the fuck is going on there?
@Tom_Gilroy explain immediately what the fuck is this dude doing to get that sound.
Someone explain.
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Iāll have to spend some time analysing. Spiro is incredible.
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Lmao that lotr vid sums it up.
Iām confused and awed and shocked and bewildered at what Iām hearing and seeing lol.
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Holy hell, thereās another new thing Iām gonna have to try to learn so I donāt feel feel useless with the instrument LOL!
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This is an interesting article about his technique, it would be interesting to see Troyās thoughts.
I think itās equal parts the power of the stank face and hair in the strings 
. (Aside: long-haired folks, does it never get stuck? It always makes me nervous when I see hair near strings because I feel like it could get tangled, like those classic spring-based chest workout things that would rip out all your chest hair.)
This looks a lot like my DSX except he can a) actually use it and b) use it on his lowest string. Someday maybe.
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He is so damn good!
He gets such a tight and precise sound, which really makes him stand out.
I bet he has a super heavy noise gate to help him get that sound. It also sounds like heās doing a lot of hammer on from nowhere.
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His reference to a bouncing ball reminds me of how doubles work on drums but Iām struggling to see how it might apply to picking.
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I think everyone has different weird āproprioceptive mnemonicsā to remind themselves of how to get their technique to work. I try not to pay too much attention to them 
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As @eric_divers mentioned, itā not a physically accurate description of whatās happening.
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Lol heās just saying it because it sounds cool.
Still though doesnāt explain how he gets that sweeping to sound like heās not sweeping. I donāt think itās a compression trick either. Thereās clips of him getting the same sound with an unprocessed acoustic guitar.
Yes, his physics is wrong, but I think that he means there should be more and more changes of direction per second. I think he is saying itās not really about hand speed but rapidly changing directions, hence the movement has to become small.
I suspect heād say this: long motions are wasted, better to have already turned around.
For a given hand speed, go half as far and have twice as many notes per second. This is what he likely means by the ballā¦ the speed is the same, the travel distance is reduced.
Yeah his analogy is just funny lol. The bouncing ball like represents kinetic energy or whatever directing it towards and reflecting off of stationary surfaces on either side of the ball - just doesnāt make real sense in terms of what heās doing technique wise.
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The problem is, you donāt control the distance travelled. You control the magnitude and the frequency of the force that drives a forced oscillator. Higher frequencies result in smaller amplitudes (distances), but the reverse is absolutely not true.
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You have a solid theory, but we must compare it to experiment to be confident. Given that so many distances are known (like string spacing, pick sizes, etc.), Iād love to know what xā(t) for the pick tip looks like from video. From there, we could do the derivatives and see if it really looks like the model that you proposed. I suspect that somebody like Spirio is so fast because he is focused on changing direction, and he is NOT behaving anything like a harmonic oscillator. Iāll bet there are violent ābouncesā and then relatively uniform speedā¦ but Iād love to see this turned into actual numerical data where one can examine it.
Another way we could get this is by using an IMU chip (say accelerometer and magnetometer) while somebody is picking, but video processing would be the ultimate, now there can be a Magnet App to go along with the mighty Magnet! (Troy can vibe code this, we know heās multi-talented.)
Just to be clear here, a forced oscillator is not synonymous with a harmonic oscillator. Any cyclical motion driven by a periodic force is a forced oscillator. Rapidly changing directions through force is the forced oscillator case. The equations of motion may be more complex than the simple case Iāve described (I actually think picking requires two forced oscillators with a simple frequency relationship), but the principles would be the same.
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Well, 'aight, check this out, dawg.
First of all, yāall throwinā too many big words at me, and because I donāt understand them, Iām gonna take 'em as disrespect. Watch your mouth and just help me with the sale.
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Perhaps! I wish that there was data tracking the pick location in time, Iām curious about what the acceleration looks like.
The question is about details of how a pick hand moves back and forth, and if it looks like (1) a ball bouncing between a floor or ceiling per Spirio, abruptly changing direction, (2) a sine wave smoothly going back and forth, or (3) something else.