What was eventually distributed to Conan, Fujiwara and Reiko Akiwa were three wired headphones and three answer books, and the cables for the three wired headphones had been connected to the multi-head connector of a nearby music player in advance.

"Ready to start," Gregory sat casually on the edge of the broadcast machine, and after watching the three of them signal that they were ready, he pressed the play button to start the test audio. “go！”

[Question 1: You will hear multiple pure rhythmic tones based on 440Hz, which may be of normal pitch or slightly higher or lower than normal pitch, please record the sound of all the pitches you hear and the difference compared to the standard tone.] Note that some pronunciations may have special sounds, or may be a combination of multiple sounds. 】

"Special timbre?" Conan held the pen and tapped the answer book with the tip of the pen a little nervously. "What kind of special law?"

Just then, the first note sounded – a note slightly above the standard mi.

[Mi+] - Conan

[E3+] - Fujiwara

At the same time, Reiko Akiwa also calmly wrote down the results of her listening in her notebook.

【411】

Cents, this is the meaning of the number written by Reiko Akiwa - if C3 (ordinary do) is used as a benchmark, then C4 (treble do) has exactly twice the number of hertz at pitch frequency as C3, and C4 is 1200 cents higher than C3 if C3 is used as a reference point. Reiko Akiwa's 411 means that this tone is 411 cents higher than C3, and the pitch frequency is 2 (411/1200) times that of C3, which is about a quarter of a tone higher than Mi.

The next question immediately made Fujiwara, the only one of the three who did not have an absolute sense of sound, show a rather shocked expression, and then glanced at Gregory in confusion, then at Reiko Akiba who was writing something with a smile on her face, and Conan, who wrote an answer with a somewhat uncertain expression after thinking for a moment.

【Absolute Pitch...... Is it a monster? 】

Fujiwara raised such confusion because of the crisp sound of clapping hands coming from the headphones. Yes, the test required them to hear the pitch of this clapping sound.

For ordinary people, such a sound cannot be associated with such a thing as pitch at all, but for absolute tonal owners, there is never any distance between the two.

The next note had returned to its normal piano note, and Fujiwara, though a little lost from the previous question, was still ready to recognize it in his fullest state, but he found it strange in this note: it seemed to be a little ...... compared to the normal note Odd?

Where does this feeling come from...... Fujiwara frowned and chewed on the tone carefully. But he also knew he had to make a decision as soon as possible, betting on whether his uneasiness was just a delusion or something real.

He eventually chose to think that this note was indeed a bit strange, and the strange reason was that it was lower than the standard note on closer inspection.

[B4-] - Fujiwara

[1086] - Reiko Akitena's answer had already been written before him, and it was evident that she had been trained much better than Fujiwara in this area, and that she was still at ease with it. When Fujiwara was still hesitating whether there was really a gap between them, Reiko Akiwa was much more sure: B4, that is, the score of si, is 1088, and although this sound is not much, it is indeed lower than the standard si.

But when I wrote this, even Reiko Akiwa muttered a little - although this tone is indeed lower than the standard tone, but this earphone is an electronic product after all, and if these slight sound differences come from the failure of machine conduction, then this experiment is meaningless.

And the next note, to be precise, the next set of notes, made Reiko Akiba feel a little funny.

It was the alarm tone of NHK TV, which had been used by Emperor Showa when he died...... No, this one seems to be a little longer than the music of the emperor's death, and it seems to have been transposed, which is not quite the same as the string of voices in Reiko Akiwa's head. But...... Still not that difficult, right?

(This is a transposition of the siren when Japan issued a declaration of war.)

Thinking like this, Reiko Akiwa casually wrote down all the answers, only to find that although Fujiwara's reaction was also very fast, Conan seemed to be completely stumped by the question, and did not write anything, with a completely confused expression on his face.

This question ...... Is it hard? It's not difficult!

Fujiwara, who was on the sidelines, quickly realized Conan's predicament, and Gregory seemed to have anticipated this.

After that, there were two more chord tests, a set of unusually short and complex piano chords and a plosive-toned chord for an electric guitar that lasted relatively long. After these two chords, the first part of the test is over. The sound of a symphony followed, and Gregory handed three copies of the score to the trio. "Look, it's something on this, look carefully to see if there's any wrong note."

Brahms's Symphony No. 1 in C minor may be a little confusing to those who are not familiar with music, but all three know that it is a piece with a total duration of more than 45 minutes.

It seems to be a rather boring and protracted battle.

……

After 55 minutes.

"So, what's the use of letting us listen to those tunes just now?" After finishing the set of questions that were similar to the first ones after the First Symphony, Conan looked in front of him and applauded Gregory, congratulating them on completing the test. "It's clear that there's no problem anywhere, and it's still making us waste so much time."

"yes, isn't it a little too torturous," Fujiwara also looked rather tired. "Is it really a serious test, not a torture for us?"

"Well, of course it's a test," Gregory glanced at Reiko Akiwa with an unfathomable smile next to her. "Hmm...... Let's compare the answers. Considering Reiko's skills, I wanted her answer to be the standard answer. ”

Low Normal - Clapping - Slightly Low Normal - War Alarm - Piano Chords - Electronic Chords

In these six questions, Fujiwara and Conan were able to achieve the same direction as Reiko's answer in half of the questions (which were completely incomparable in terms of accuracy), but they each had two questions and three questions that were different from Reiko's answer.

Fujiwara's failure to hear the clapping and the unrecognizable piano chords due to the stacking of too many notes were to be expected, as the former did require absolute tonality, while the latter was too complex.

But Conan, as a man with an absolute sense of tone, made more mistakes.

Instead of being able to hear the second normal SI being slightly lower than the normal SI, he simply filled in the normal SI. And in the two questions of war alarm and electronic music chords, he simply handed in a blank paper.

And something even more amazing is yet to come.

In the set of questions that were done after listening to the entire First Symphony, Fujiwara and Conan's answers were not the same as Miss Akiwa's, except for the only piano note in the few questions, but were generally one note lower, but almost identical between them.