When
Question · Eridian chord · 언제
In the Eridian chord language from Andy Weir's Project Hail Mary, the concept when (언제) is spoken as a 3-note chord rather than spelled out letter by letter. Eridians communicate by sounding musical notes simultaneously, so “when” is heard as A4, C5, F5, played with a rising pitch, over 0.5 seconds.
▶ Play “when” in the translator| English | when |
|---|---|
| Korean (한국어) | 언제 |
| Category | Question |
| Chord | A4C5F5 |
| Frequencies | 440.00, 523.25, 698.46 Hz |
| Notes in chord | 3-note, rising pitch |
| Duration | 0.5 seconds |
How “when” sounds in Eridian
“when” is built from 3 notes — A4, C5, F5 (440.00, 523.25, 698.46 Hz) — sounded for 0.5 seconds. The chord rises in pitch as it plays — a contour this translator reserves for questions. It belongs to the question category, which collects question words and conversational responses. In English it covers when; in Korean it maps to 언제.
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