Hey Fu,
Music definately makes the world go around; some of us are taken further than others by its message. As an old rocker, I have a hard time relating to 2days music. Maybe its just me but todays music seems like a lot of whiney ass, disco beat synthetic music composed on software programs meant to facilitate that result and it all lacks heart to it. Maybe I"m wrong but just my viewpoint.
I'm a self taught musician who grew up in the era of a 3 piece/ 4 piece bands whereby lead guitarists were expected to drive the music so to speak.As such, I was expected to learn the riffs of Eric Clapton, Jeff Beck, Jimmy Page, Jimi Hendrix, Ritchie Blackmore, Johnny Winter, BB King, Mick Box, Neal Schon and I could go on; & I did too :) Ritchie Blackmore became my musical father. As such, I can nail anything Purple !
As time passed, picking and pick sliding fell way to Eddie and his stuff. The idea of moving around the nut in your head into different positions is just a sideways viewpoint of using a capo. The capo gave U 12 strrings sounds on the 6 strings but Eddie's idea opened up the fingerboard for all players.
As a rock music composer, I see no value in doing what everybody else is doing. I believe true breakthrough is following your own path. The better the player, the most the aforesaid makes sense.Ritchie Blackmore and Eddie Van Halen inspire me !
Axe