What is the concept behind playing this diminished seventh arpeggio at a speed of 140?
One hundred and forty beats per minute, approximately 2.3 beats per second.
One hand has to play a set of "4" sixteenth notes per beat, and one hand plays approximately 9.2 notes per second.
Total: Touch the key 9 times.
Then it's 18 times with both hands.
Touching the keys eighteen times with both hands in one second does not seem to be an exaggeration, and some very powerful children seem to be able to do it.
Indeed, among all the seventh chord arpeggios, the diminished seventh chord has the shortest distance between the four notes of the chord. Similarly, when moved to the keyboard, the distance between each key is also the shortest.
Therefore, it is relatively easy for children and adults with smaller hands to play.
But if it were just an ordinary diminished seventh chord arpeggio, even if it was 140 beats, Qin Jian would not be sweating profusely and out of breath like he is now.
"Octave - Diminished Seventh Chord Arpeggio."
This is what Shen Qingci said just now.
Simply put, the requirement for adding an octave is to multiply the original 18 keystrokes per second by 2.
Answer: 36 keystrokes.
The main problem is whether to double the keystrokes or second, with the addition of octaves, the difficulty of these two arpeggios simply becomes heaven and earth.
The former is still stuck in the arpeggio technique in the piano boy's examination, while the latter goes directly to the octave technique in the later stage of piano performance.
Aso Natsuki didn't dare to blink as she looked at the pair of big vein-covered hands on the piano. For the first time, she noticed that Qin Jian's hands were so big when they were fully open.
The violent sound of striking strings shook the piano board next to it, and the piano board also buzzed.
His extremely fast-moving wrist struck four notes at the same time every moment of lifting and lowering it.
Four identical note levels span four octaves.
But there is no sound that makes people unable to detect their presence, even at high speed.
Aso Natsuki's heart was extremely shocked.
She knew that Qin Jian's fingers were very powerful. The first time she saw the other person stepping on the mute pedal to play "Revolution" in the video, he knew that this person's fingers were definitely not comparable to hers.
Later, various facts verified that this boy was much stronger than he imagined. But at this moment, Aso Natsuki's three views were refreshed again.
"锟斤拷"
A harsh sound breaks the chord's octave.
"stop."
Fourteen seconds after Qin Jian started playing, Shen Qingci stopped.
The sound of the piano in the room stopped instantly.
"hu——hu————"
Qin Jian held the piano and panted wildly. He felt that his arms almost no longer belonged to his body.
Shen Qingci's expression was also quite complicated. He admitted that he just wanted to express - 'subtract the seventh arpeggio' and casually added an octave in front of it.
Recently, he was writing a set of arpeggio scale practice textbooks suitable for piano learners at all stages. He was still thinking about how to describe the practice of this technique, and finally gave up.
But he didn't expect Qin Jian to give him a surprise early in the morning.
The speed of 140 beats can be maintained continuously for more than ten seconds, and every sound is clearly visible.
Shen Qingci's eyes flashed with admiration, and when he walked to the piano, he saw that Qin Jian looked nothing but sweaty.
"Need a break?" he asked.
Qin Jian was stunned for a moment and then raised his head, "No problem, no need to rest."
Shen Qingci nodded, "Then let's start from the third movement."
Qin Jian said, taking one last look at the new items he had just obtained in his backpack and thinking that he would study them after class.
Then the space was closed and the performance of the third movement of La San began.
Like Qin Jian, Aso Natsuki also listened and studied while Qin Jian was in class. Sometimes Shen Qingci would specifically ask her if she understood.
An hour passed quickly.
After completing the third movement completely, Qin Jian’s lesson for today is also over.
After class, Shen Qingci briefly told the two of them about their trip to the Tchaikovsky Conservatory of Music in half a month.
This trip is divided into three parts.
The first part is the visit and exchange.
In the name of this seminar on Rachmaninoff's works, the Tchaikovsky Conservatory of Music not only invited a large number of professional pianists and orchestra conductors, but also invited many pianists from top music schools around the world.
A team of teachers and students from the keyboard department came together.
It is said to be an exchange. In fact, it is a concert held by each college's team. Every few years, the big guys get together and make gestures to see who has a bigger fist and who has a smaller fist.
According to convention, generally a college with a greater reputation in the world is qualified to complete one competition alone, while several colleges with a smaller reputation join together for one competition.
"So is our Huayuan more famous?" Qin Jian interjected and asked.
Shen Qing's words became serious and his expression became serious: "This year, we will have a complete concert."
Qin Jian blinked, and he could hear the implication in his words. He must have received such treatment from the Huaguoyuan this time because of the other party's return.
"So you both must be fully prepared for this concert." Shen Qingci warned.
Seeing Xia Shu nodding, Qin Jian also nodded slightly.
However, he knew that Xia Shu was not Chinese, so he did not expect the other party to have any special sense of honor in this matter.
But it does sound like a battle of honor.
"Don't worry, Teacher Shen."
Seeing Qin Jian's serious look, Shen Qingci raised his eyebrows and lit a cigarette with a click.
After a moment, he said, "What do I have to worry about? Even if something goes wrong on stage, you will be the ones who make a fool of yourself."
"Well..."
Qin Jian felt that this was indeed the case. In order to alleviate the embarrassment at this time, "When was the last time such an event was held?"
He changed the topic and asked: "Where?"
"In 2009 at the Juilliard School, the last topic we discussed was the performance teaching of Gershwin's works." Shen Qingci replied.
"Gershwin?" Qin Jian said subconsciously, "Jazz theme?"
Shen Qingci nodded, "At that time, all the internationally famous jazz players came."
"Tsk tsk."
Qin Jian felt inexplicably happy, "What about the result? Did you go?"
There was a brief silence in the office.
...
This second part of the itinerary is the official theme - a study of Rachmaninov's works.
The last time he was in Haishi, Qin Jian heard Cai Song mention that this seminar would not only discuss keyboard works, but also his symphonic works.
Shen Qingci didn't say much about the content of this seminar.
"The key research and discussion works in this section of piano works are his twenty-four preludes and five piano concertos."
As Shen Qingci spoke, his eyes fell on Qin Jian's face.
Pull one pull two pull three Qin Jian knows.
It's just that, even in the piano world, very few people mention it.
As for this pull five.
a long time.
"La Wu...is it?" Qin Jian turned to Xia Shu.
Xia Shu frowned and thought for a while, then replied to Qin Jian seriously with her eyes.