Song Form: RoomNoise-LetterA-Hook-LetterB-WindowBreak-HookFade
Harmonic Motion: ii7 / V7 / Imaj7 / vi7

[Room Noise] Bars 1-8
Layers: Ambient, Texture, Keys
Focus: 先給房間感和磁帶噪聲。

[Letter A] Bars 9-28
Layers: Drums, Bass, Keys, Pad, Texture
Focus: 鼓刷輕推，不要太亮。

[Hook Memory] Bars 29-40
Layers: Drums, Bass, Keys, Lead, Counter, Bell
Focus: hook 像回憶片段，而不是主唱爆出來。

[Letter B] Bars 41-56
Layers: Drums, Bass, Keys, Pad, Texture, Counter
Focus: 第二段讓 counterline 更靠前。

[Window Break] Bars 57-64
Layers: Ambient, Pad, Bell, FX, Perc
Focus: 像望向窗外那一下的空白。

[Hook Fade] Bars 65-84
Layers: Drums, Bass, Keys, Lead, Counter, Bell, Texture
Focus: 最後不再完全回滿，慢慢褪色。