Half of the First Minute Is Silence

Jang Jae-sung came to the playground. One acoustic guitar, one keyboard. That's all.

There isn't a single leaf on the trees in the background. This was filmed before they came out.

A new song has arrived at the playground today. This one is the sort that leaves a great deal of the sound empty.

43.5% of the First Minute Is Empty

I counted the quiet stretches across roughly 32 seconds, from 0:20.50 to 0:52.25. 3.0 seconds at 0:20.50, 2.5 at 0:27.75, 3.8 at 0:34.75, 2.5 at 0:43.00, 2.0 at 0:50.25.

That adds up to 13.8 seconds. Of 31.75 seconds, 43.5% carries no sound.

It's not that there's no singing. Across the same stretch, 577 of 900 frames are voiced (64%), there are 50 sustained tones holding pitch for 0.2 seconds or longer, and the median pitch is 192Hz.

The comparison makes it clear. The talking stretch between songs (4:10~5:00) has only 12 sustained tones and a median pitch of 109Hz. The middle of a song (6:00~6:45) has 64 sustained tones at 155Hz.

The first minute reads 50 sustained tones at 192Hz — that's singing, not speech. And it sits 37Hz above the singing in the middle of the set. Jang Jae-sung sings a line, rests two to four seconds, and sings another.

For 18 Minutes 41 the Floor Never Arrives

The 20~150Hz band takes a median 5.3% of total energy. The 90th percentile is 18.5%, and it exceeds 30% across only 1.9% of the set.

6000~11000Hz has a median of 8.2%. That figure is the more striking one. A single cymbal or shaker pushes that band toward 15%. 8.2% means there is nothing of the kind.

Look at the screen and that's exactly right: guitar and keyboard, nothing else.

There are three points — 15:16, 15:23 and 15:36 — where the low end spikes to 31~41%, but that's a bass string struck hard, not a drum. At 0.05-second resolution the mids fall as the low end rises. With a drum, the mids would stay.

Absence, Used as a Title Twice

Song	Start
I Wish for Forever	0:01
Bobo	5:04
Null	9:17
A Sentence No One Hears	13:36

The third song is called 'Null'. In programming, that means no value. The fourth is 'A Sentence No One Hears'.

Absence is used as a title twice, and the sound is genuinely empty too: low end 5.3%, top end 8.2%, 43.5% of the first minute silent. The titles and the measurements point the same way.

Turn It Up a Notch or Two

The median level is −14.8dB. At normal volume it sounds small. But the 5th-to-95th percentile spread is 21.3dB, so the loud passages are plenty big.

Listen somewhere quiet with the volume a notch or two above usual. Those two-to-four-second gaps only register then — at low volume you'll assume the song has ended.