What's the deal with that dude Spiro Dussias?

General Music Discussion
#21

Yeah we all have our own version of wax on, wax off. :rofl:

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#22

Are you thinking of the two forced oscillators as the opposing muscle groups driving an idealized RDT motion? Or something more complex that weā€™ve discussed over Zoom? Iā€™d guess the latter.

My zeroth-order setup of this problem would be as a driven pendulum, but without the small-angle approximation the equations of motion there rapidly become pretty rough to solve analytically, and itā€™s unclear what insight I could glean from that even if I could (besides probably upending all of diff eqs lmao).

(Edit: considering $\theta = s/r$ with an r of, say, 12cm and s of <2cm for very fast picking small angle might work but as I think about this more I think this setup wouldnā€™t actually yield any useful insights)

((Edit edit: we need $\LaTeX$ integration up in here))

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#23

The latter.

I think itā€™s almost guaranteed to be impossible to solve analytically, which is why I havenā€™t bothered trying to derive anything more accurate.

While I canā€™t be certain, I very much doubt it would provide any more meaningful insights either. You canā€™t increase the frequency of an oscillator by decreasing amplitude, only by increasing the frequency of the driving.

Whatever the description, I doubt itā€™s actually relevant to learning how to do all this. The nervous system isnā€™t ā€œcalculatingā€ a solution to DEs and using to to ā€œprogramā€ movement. You just move prospectively based on haptic perception thatā€™s lawful at the scale of the problem, and it works or it doesnā€™t.

Also, its would be absolutely hilarious if we had LaTeX integration.

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#24

I guess Spiro simply used fancy words to say ā€œI can do the hyper-picking twitchā€. It sounds funny but Iā€™m confident thatā€™s what he meant.

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#25

He has posted here before (exactly one time a year and a half ago haha) - perhaps he can elucidate. @sdussias

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#26

incredible player, but if you really want the juice youā€™ve gotta find the fruit tree. That tree is Marshall Harrison imo.

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#27

Marshall Harrison is obviously very skilled with a tremendous economy picking style but Spiro Dussias seems to be doing stuff Iā€™ve never really heard/seen before.