Disclaimer: Do I really have to say that Naruto isn't mine and the world of capitalism wouldn't let me grab a little bit of the fortune that Kishimoto-sensei is earning?

Warning: It has swearing and mud-fight (just kidding) but above else, it has homosexual relationship, and in this story, Sasuke with Naruto. You've been warned.

Onwards to the story:

Lesson 01 - Meeting the Bastard

"It's not staccato(1) you moron. It doesn't have a slur(2), but you don't have to hammer like the retard you are."

In the middle of a bright lighted room, there lied a grand piano where one blue-eyed young man was playing some music while the graphite-eyed boy was…analyzing about it. Bickering, actually, was the most accurate word. The other one growled:

"Shut up asshole! I'm not playing staccato; I'm just playing the way it should be!"

"Hn. There's no way this a Bach(3). My ears are rotting from hearing your garbage. I'm sure that even a 5 years old kid can play it better than you."

"Teme…" – Naruto, the blue-eyed boy, was almost giving to his urges and shove the score in Sasuke's, the graphite-eyed teen, mouth.

"This is the simplest scores I've ever seen in my life. If you can screw this up, I can't see when you play a Liszt(4)…or anything more difficult than a monkey can manage to play, as a matter of fact."

"Hey! My Bach's version is great! Even Gould can't play this well as mine! (5)

"I'm sure that your version is better than Gould…in your stupid Dobe world."

"Grr…" – the blond just ignored Sasuke's taunt and proceeded to play the music.

"…Is that a crescendo(6)? Stupid, you're supposed to keep your tone in neutral, if you don't want to make the Sonata as irritating as your loud mouth."

"I've had enough of your stupid asshole voice. " Naruto said banging the keys. "I'm gonna make you mute for your whole life so you won't ever sputter your irritating voice!" He yelled as he watched the other one walking farther from him. "Hey, come back here you coward! Why are you backing away, you sissy moron?!"

"In case that you forget, we're near a piano, so when you try to punch me, since you are a dobe, you'll fail in your aim and will consequently damage the piano, which is, by the way, not yours."

"Big words for a coward who can't admit that I'll kick your ass." Naruto snorted.

"What was that usuratonkatchi…?" Sasuke's voice increased his tone, menancing.

"I'm saying that you are a CHICKEN, IDIOT! CHICKEN, just like your hair implies to be!"

"You…I'll kill you!"

"NO, I'LL KILL YOU!!"

"Aaah….such beautiful friendship…"

The last line was spoken from a silver-haired man, who at this moment sat at the corner of the room, watching slightly amused the situation.

"WE'RE NOT FRIENDS!" both of the young men screeched together, before returning to glare to each other.

How did this "wonderful" friendship had started? Let's return some months to see it…

Four Months ago

Naruto gulped, impressed by the size of the house. The silver-haired man explained that he owned a small studio and would be grateful if Naruto could accept his tutoring on every Saturday.

"There's no way in hell that this is a 'small' studio…" he gaped, standing in front the enormous mansion.

The young tanned skin boy met his future mentor when he was working at the Salzburg café. He daily played pieces for high-classed costumers, attending their demands with many different pieces, from Mozart(7) to Bartok(8). At night he'd work at the Gershwin bar, alternating between classic jazz to all kinds of popular songs he could remember, thus, having extended different styles to play.

But, even though it was really fun to play all sorts of music, (though some of it ticked him off, with their simplistic melodies and overused rhythms. Seriously, how could this type of music get to the top of the sales chart?!) Naruto felt that he reached to a point that he couldn't evolve anymore, not without some professional help.

By some twist of fate, at this moment, Kakashi (the silver-haired guy's name) after hearing his performance at Gershwin bar, offered his help and promised that he wouldn't charge money for it, making the blond feel eternally thankful. He had his doubts, since it wasn't a daily occurrence to have this kind of proposal, so he questioned to Tsunade (the café's owner) if she knew the pianist's name written in the business card he showed to her.

Tsunade grabbed the card and slowly widened her eyes while she read the name. She asked then:

"Where have you got this card?"

"One of the jiji's clients showed up and offered me to be his student. Is he being serious about it? Is he a good pianist?" Naruto mentally grimaced from all kinds of flirting he received whenever he worked, he hoped he wouldn't meet another pervert. (poor, poor Naruto)

"No, he…" She smiled fondly and then returned his gaze with a keen voice. "Naruto, he's currently one of the most talented and famous pianist of the world! And he wants to teach you piano?!"

"Yeah…" the boy answered, feeling quite comforted (and excited) by the idea in learning from such renowned person.

"And what are you doing now, staring dumbly at this piece of paper and talking to me?! Call him and accept his invitation!" Tsunade jokingly hit at the back of his head (although her strength is no joke) before grabbing a nearby telephone and offering to him.

Naruto beamed back at her before agreeing the proposition.

And then, after 4 days from here, he stood in front of the house of his future sensei.

"C'mon! Stop being a coward! Go on and ring the goddamn bell!" The blond inhaled and exhaled many times, trying to gather his courage to push the button.

"Yes?" asked a voice from the intercom.

"Um…I'm Uzumaki Naruto! I'm here to meet Hatake Kakashi…("If possible, unless you guys decide that I'm a menace and try to eliminate with trained-dogs, lasers and all kinds of security thingies" Naruto complemented, peeking scared towards the metal gates)

"Of course he'd have such gigantic mansion. Didn't Tsunade-baachan said that he was a famous pianist?! He must be filthy rich then! Argh, why haven't I thought about that before?! He must have quite a few dozen millions of dollars. (Naruto valued more the dollar, since Yen didn't value as much as the American current) And for me…to actually be able to learn from him…and above all else, I'm learning for free! Hm…I must be very talented to deserve this…" This time, he sported a full smirk, feeling very satisfied with himself.

He could see all kinds of praise from the newspapers, the fangirls trying to have a piece of him (is that even possible with classical music? Let Naruto dream… :P) the crowded theater clapping loudly to him, cheering after an exhausted recital…

"Come in." the voice said, shaking him off of his dream world.

The automated doors slowly opened in a silent motion. Naruto always had simple dreams, simple ambitions, simple life. In front of him, it showed a broader horizon and an infinity of other options and expectations. A strange, indefinite and mysterious world. There he laid in comfort zone, feeling for sure he would take a while to get used to this big house (or should we say…new environment). Just one more footstep…and he'll explore this entire unknown scenario.

He gulped, after stepping in and walked through the garden till he reached at the main house.

The young man sauntered closely towards the wooden doors and knocked politely a few times. He waited for some reasonable minutes, though nothing significant answered him back. After knocking the second time and waited another set of worthless times, he lightly twisted the knob, and for his puzzled bewilderment, the door was open, letting him join inside.

Frankly, he was expecting a row of maids wearing mini-skirts and greeting him with the sweetest of voices (or at least a butler with a British accent) but all he could see was a young black-haired boy, almost about his age, sitting in the hall, fuming silently.

"Um…hello?" Naruto's intention was to ask some directions, since Kakashi was supposedly waiting for him.

The other one simply glanced back at him (glared, actually) before returning his standard position and resumed his scowling expression.

"Excuse me…are you listening to me goddamnit!?" Naruto returned the glare, already feeling that he didn't like the young boy.

His almost coal eyes simply ignored him. Naruto chose to elevate his voice.

"Hey! As part of common sense of etiquette, one should answer someone's question!"

"Annoying…" came a low whisper.

"What?"

"I said that you're ANNOYING! DEAF!" The blond backed down a little bit, surprised from the sudden outburst.

"Hey! I'm not annoying! And it's not my fault if you're in emo bitch mode!" He scowled in return.

"Oh great. Not only sensei is late for almost 2 hours, I have to be bothered by a loud-mouthed stupid blond. "

"WHAT?! Go to hell you bastard, I was hoping that someone kind would inform me where is Hatake-san but it seemed that you aren't well-mannered enough to answer a simple question!"

"Kakashi-sensei is busy, satisfied? Now SCRAM." Growled the stoic teenager.

"FUCK you ass—"

"Yoh Sasuke-kun." Replied a 3rd voice coming from a room.

The dark aura spread throughout the hall at the same time as the brunet spoke in a very low tone of voice.

"You're late."His eyes glared accusingly.

"Sorry sorry, I got lost in this house." The silver haired man replied with a sheepish expression in his face.

"It's your home. You can't get lost in your home." The other one snorted in return.

"I bought it recently. I still need to be acquainted with this new atmosphere."

"Bullshit. You lived your entire life in this house. It's one of the heritage that your parents left before they died."

"Huh…oh, is that Uzumaki-kun?" Kakashi quickly changed the subject after seing the mop of yellow hair.

Naruto bowed respectfully to Kakashi.

"Yes, I've come here so we can have our first class." It doesn't hurt to act with courtesy at the first time, huh?

"Hm…yes, I believe you'll be able to learn a lot and hopefully evolve as much as you can from now on."

"Thank you Hatake-sensei!" Naruto smiled brightly to him. In this moment, nothing in the world could break his good mood.

The irony...

"Wait a minute. You're saying that this…usuratonkachi is going to be your student?!"Exclaimed the dark-haired teenager, pointing unabashedly towards Naruto, with a mystified expression on his pale face.

Naruto narrowed his blue eyes.

"Don't call me a usuratonkachi Teme."He growled under his breath.

"You're a usuratonkachi, no matter how much you deny it or try to hide the truth." Sasuke smirked lifting his chin with an arrogant look.

"Hatake-sensei! Who the hell is this bastard, that barged rudely inside your house and it's insulting me right now?! If he's a burglar, I'd more than gladly kick his—"

"Only a moron like you would mistake me for a thief, idiot. You're really a dobe." If it wasn't any more possible, the brunet's smirk broadened, with a smug aura complementing behind.

"Why you—" Naruto started to roll his jacket, preparing for a fight.

"Enough children." They glared back to the man who dared to call them an infant. "Sasuke, stop provoking unnecessarily Naruto. Naruto, meet my other student. Uchiha Sasuke."

"WHAT?!" The blond boy protested readily. "How can you even stand this arrogant guy! I can't understand it!"

"The same way on why I can't understand on how he's going to teach piano to a dead-last like you."

"FUCK YOU, you conceited stupid motherfucker of an asshole!!" Naruto already managed to reach his voice in higher decibels unsuitable for normal human ear to bear.

"Ah…you sure got a very fresh introduction between you two. " Kakashi moved his hand to his chin with an approving nod.

"WE DO NOT!!" They both shouted in unison.

"Well…anyways, I really do hope that both of you will have a good relationship, because you will have classes with me. Together." He purposely emphasized the last word, grinning inwardly.

"WHAT?!" they both screamed mutually, one with distressed voice and the other one with menacing one. Then, they resumed glaring to each other.

Hell has just started.

Explanations:

(1)staccato: it indicates when the note selected should be more punctuated than it's normal value. Usually used on faster or "happier" musics.

(2)slur: It's used when a certain row of notes are aligned together to play in one physical stroke. More or less like singing without interruptions to breathe.

(3)Bach: Johann Sebastian Bach is one of the fathers of the music known as today. His compositions influenced a lot of popular compositors, like Mozart and Beethoven. Anyways, the most important thing is, like Sasuke was explaining, Bach don't uses slur in his scores, and you have to play note by note without aligning one after another. It's pretty difficult thing to do, if myself say so, and if you're not careful you end up playing like Naruto…Using Staccatos. :P

(4) Liszt: Franz Liszt is another famous composer, lived in 19th century. If I'm not mistaken about it, Liszt was quite a handsome fella and attracted a lot of fangirls in his concerts, kinda like a rock star from our days. (such an unnecessary information…) Sasuke probably was mentioning Liszt "Transcendent Studies" (which is really is transcendent considering the level of difficulty :P)

(5)Glenn Gould: He's a pianist who's extremely famous from his interpretation towards Bach's works. His way of playing made his style become unique, completely different from others. I'm going to show ya the difference between him and a poor pianist. The link is from a...well, theorically, it's an easy piece (but literally, nothing coming from Bach is easy) It's Bach Invention no. 8:

His version:

http : / / www . youtube . com / watch?v(insert the symbol of 'equal')frmWYqq5x2I

Bad version (yeah, I know that I'm evil, bite me):

http : / / www . youtube . com / watch?v(insert the symbol of 'equal')ecgOvconoXI

Hey, no offense to the kiddo, but it doesn't matter on how much a child can be a genius, he doesn't have the maturity in emotion to play it well. When you're a kid, the only thing that you'll concentrate to play is evolving in terms of technique. All of your interpretation will sound hollow and artificial, only after acquiring experience and growing up (as well as growing up on the piano field) you will be able to play it with feelings. Errr...true fact, proved in the medical science and all...

And oh yeah, pay attention about what Sasuke had said in this chap and hear Gould corrected version. Not staccato but without slur. The first part the kiddo play with staccato while Gould play without slur. See?

(6)crescendo: a gradual increase of volume. In a very poor made type of comparison, is like making your music from volume one and you increase towards volume ten. Of course, the duration and the impact also varies.

(7) Mozart: Wolfgang Amadeus Mozart is probably the most famous classical music compositor from all over the world. Probably especially because scientists mentioned that his music are good to improve babies intelligence…lol. He's from the classical era, when he likes to compose in a very elegant manner. Clarity, balance, and transparency are hallmarks of his work. Most of his musics are very enjoyable to hear and since he's from the era where melodies overpowers rhythm, most of his music have a fluid sound.

(8) Bartók: Béla Bartók is a compositor from the 20th century. I'd make uninterrupted compliments about his music, but it surely will be unimportant for this fic. So, he's one of the types who studied like hell all kinds of composition types and has a very unique style, reflecting a little bit the changes from that time, where the rhythm has a bigger role in composition than melodies and cadences (since the earlier compositors already explored the whole package) so he introduced the ethnical music, where you can feel the beat of it. Sadly, at least in my country, he's not very famous except for his Children's Works (I hated to play that score! I remembered that I was permanently scarred, since the music sounded strange to my ears and I preferred to play folk music). Oh yes, I made the comparison between Mozart and Bartók since one emphasize melody and the other one rhythm.

Other expressions I'll leave for further explanation on the story okie? ;D

Author: I had the sketch of this fanfic, surprisingly, inside of a traffic-jam. XD The title looked pretty attractive to me, not to mention its sonority was well-reendowed. So it glued in my head until I couldn't bear and I started to write this fanfic.

I'll try to not to use a lot of technical terms and try to stick to the plot, but I'm too excited to write this story to left it behind. Hopefully, you guys will tolerate it with me…:P

I'll use some of Japanese expressions, but I'll only stick with pronouns. I mean, how one character will call to another. Because there are some expressions where it can't be translated to English and it leaves like a unique trait to one and each other.

If possible, reviews are completely welcomed! :D