What is the control of the guitar?

Answer 1

3 things in different ways of thinking...

first is your picking and fretting hands, you control the speed and notes you play

second is your amplifier and or effects pedals as they control the sound

third and final thing is the knobs on the guitar

Answer 2

The ones on the head make the strings tighter to change their pitch.

Answer 3

How do you control the pitch of a guitar?