Song Form: Cruise-StripA-Whistle-StripB-Turnaround-WhistleOut-Coast
Harmonic Motion: I7 / IV7 / I7 / V7

[Cruise Intro] Bars 1-8
Layers: Ambient, Keys, Bell, Texture
Focus: 像車窗剛搖下來。

[Strip A] Bars 9-28
Layers: Drums, Bass, Keys, Pad, Texture
Focus: verse 要有車身 bounce。

[Whistle Hook] Bars 29-40
Layers: Drums, Bass, Lead, Counter, Bell, FX
Focus: hook 主角是哨音感旋律。

[Strip B] Bars 41-56
Layers: Drums, Bass, Keys, Counter, Bell
Focus: 次段加 funk stab 與側線。

[Turnaround] Bars 57-64
Layers: Bass, Perc, FX, Ambient
Focus: 短轉向，只留低頻與 perc。

[Whistle Out] Bars 65-76
Layers: Drums, Bass, Lead, Counter, Bell, FX, VoxGhost
Focus: 回 hook 但更會晃。

[Coast Outro] Bars 77-84
Layers: Ambient, Keys, Bell
Focus: 像夕陽開走。