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Cipher Drizzle: A minor. The piece’s Chinese title is “Secret Rain.” To underscore the theme, the opening alternates repeatedly between Am and Am9, evoking a sense of chromatic back-and-forth. The motif unfolds in gentle, arpeggiated chords, conveying an air of secrecy and intrigue. The subsequent chord progression is primarily based on 6–2–5–1 (Am–Dm9–G7–Cmaj7) and its variations, while the melody uses sixteenth notes to evoke the sound of raindrops falling. This gives way to a cadenza that resumes the 1–4–7–3 harmonic sequence, creating a smooth ascending?by?fifths effect. Meanwhile, the rhythmic pulse quickens, and the frequent use of low-register writing intensifies the emotional momentum. At the conclusion, a series of block chords are marked for arpeggiated performance, with the tempo gradually slowing as the mood shifts to one of secrecy and tension, echoing the principal theme.
Cipher Drizzle：A小调，曲子中文名《秘雨》，为突出主题，开头以Am接Am9反复交替，塑造半音来回反复的听感，动机以分解和弦舒缓发展为主，有秘密、密谋之意。