Hirasawa Yui

Heroine of K-on! and K-on!!
An airheadedly cute person with a love of snacks whom, despite being (as much as) super careless, is able to tune a guitar by ear, possibly having a genius level natural musical aptitude.
The type to rely on self-training and intuition, her powers of concentration allow her to strive through with a maniacal zeal when it comes to the things that she loves.
She named her favourite guitar "Giita" (bought when she first joined the light music club), and loves its so much she pretty much takes it along with her anywhere she goes.
Of course, she never skips practicing with it everyday.
Though her junior Azusa (who also plays the guitar) decribes her as "totally amazing" as well as "incredibly uncool", she is the main vocal and the lead guitarist of After School Tea Time.
<bad translate> For all intents and purposes, she also bears the responsibility of being the main spokesperson of the group.
<bad translate> By the second season, she shows off a windmill guitar play similar to The Who's Pete Townsend, though it appears her playing skill had actually improved over time.
It is impressive that she is able to learn and master playing on such a difficult guitar.
She is a guitarist that gives off an aura of yet undiscovered potential.

btw

have you see BECK: The Mongolian Chop Squad anime?

it's about band life, and consist of boys...

K-on in converting deaf tones to either more deaf tones or into serious moe music. But it does reminds me of my old electric guitar, stolen by a friend of mine~

Comparing Beck to K-On! is like comparing Citizen Kane to Twilight.

shut up, mud.

lol