THAT is awesome.   

I had always been convinced that when I moved to a set of lower tension strings I was "having trouble" playing them - it was as if while playing on the G, the string would "rattle" against a finger nail, stopped in position, on the next higher string up.  I "tidied up" my fingering to make it a bit more "precise" and the "problem" went away.  I think the depth of movement convinces me that was exactly what was happening....

And no, I don't think the string was loosened.

It's also interesting to see the oscillatory mode change from the sort of "travelling wave" when the bow is in contact, to the "simple" sinusoidal condition of the string once the bow is lifted.   I'm kind of busy right now, but I'll check out that link you gave later.  Thanks for the interesting post !

Crazymotive said
Beautiful. Sort of reminds me of watching a power line in a hurricane. This video reminds us that Music, Mathematics, and Physics are very tightly connected. Reminds me of an art teacher I had in college who would always stress how art and the sciences are interdependent.

Exactly  !   And the sheer beauty of it is that I would bet that many of all the great players would say that they know nothing about math and physics - but - in spite of that, their innate "art and technique" has won-out over the knowledge of frequencies, just-or-equal-temperament, etc etc etc....  the list goes ON and ON...

I'm  a scientist and engineer at heart - but - my music (being but a hobby - OK - it's an obsession in early retirement) - is "decoupled" from that, although at times I like to bring the math / analyses etc into it to "widen" my understanding of the "physical basis" of music, and "why" we hear things the way we do - be they a sequence of tones in a melody, or more complex sounds like chord transitions etc...

Music?  It's just wonderful.....