#1
improvisation is one of the most important part that musician must learn, isn`t it ?
#3
Depends what kind of music they want to play, but in a lot of popular music, yes it's usually useful.
#4
hmm,, how someone can play the instrument physically ? can you please explain it ?
#5
Quote by W>O
hmm,, how someone can play the instrument physically ? can you please explain it ?

He meant technique. Actually being able to play your instrument. All the improv skills in the world would be useless if you can't play an instrument, and are therefore not as important as the physical ability to play your instrument.
#6
Quote by W>O
improvisation is one of the most important part that musician must learn, isn`t it ?


It's one of the most important things, if you want to improvise.

Suggestion:

stop viewing things in terms of "importance". Play your guitar, learn what you want to learn, and enjoy it.
shred is gaudy music