cinematic alternative rock with dark pop textures, but the lead melody is a warm, singing violin that carries the main hook; mid-tempo with a steady pulse that gradually accelerates to mimic the DeLorean hitting 88 mph; bass is warm and supportive, not aggressive; guitars: clean arpeggios and gentle swells, no heavy distortion; synths: soft glowing pads that wrap around the violin; percussion: minimal, organic, like a quiet ride cymbal and soft snare, never overpowering the strings; sound design: ticking clock that gradually speeds up, distant thunder, the soft hum of the flux capacitor, the DeLorean door whoosh, the sound of tires on wet asphalt accelerating, a sharp but clean lightning strike exactly on the first word of the chorus; vocals: male, warm, intimate, expressive but never pushed — more like singing because the feeling is too big to keep inside; the chorus melody must be instantly hummable and feel like a nostalgic love song (in the spirit of the scene where Marty pl