Song Form: Curtain-StepA-CrownHook-StepB-GlassBreak-FinalCrown-Bow
Harmonic Motion: i / IIImaj7 / VImaj7 / V7

[Curtain Rise] Bars 1-8
Layers: Pad, Ambient, Keys, Bell
Focus: 先讓質感與空間亮起來。

[Step A] Bars 9-24
Layers: Drums, Bass, Keys, Pad, Texture, Pluck
Focus: verse 不要太滿，留尊貴感。

[Crown Hook] Bars 25-36
Layers: Drums, Bass, Lead, Counter, Brass, Bell, FX, VoxGhost
Focus: 主旋律要像精品廣告的中心鏡頭。

[Step B] Bars 37-52
Layers: Drums, Bass, Keys, Pad, Pluck, Bell
Focus: 用次旋律做高級感，不用靠更多音量。

[Glass Break] Bars 53-60
Layers: Ambient, Counter, FX, Subdrop
Focus: 短暫抽掉密度，像鏡面切開。

[Final Crown] Bars 61-76
Layers: Drums, Bass, Lead, Counter, Brass, Bell, FX, VoxGhost
Focus: 最後一次 hook 只准更貴，不准更吵。

[Bow] Bars 77-84
Layers: Pad, Keys, Ambient
Focus: 收尾像關燈。