{
  "song_id": "01_唯一（Cover G.E.M. 邓紫棋）_20260512",
  "prompt": "Genre: Mandopop Ballad / Pop; BPM: 144; Key: C# Major; Rhythm: Half-time ballad groove (kick on 1, snare on 3); sparse, adds 16th-note hats in C2; on-the-grid.; Instruments: Grand piano, clean w/ room verb; synth sub-bass, round tone; soft e-kick, layered clap/snap; crisp digital hats; lush synth string pads, wide.; Vocals: Female; soft, breathy chest in verses, clear powerful belt in chorus; controlled dynamics; light compression, prominent reverb and delay tails.; Melody: Ascending leap into chorus; sustained high notes on downbeats; phrases resolve on 3rd/5th.; Mood: The hollow ache of driving home alone after a party, radio too loud to think.; Production: High-fidelity, radio-ready polish; wide stereo mix, vocal centered; smooth bus compression.; Language: Mandarin; Highlight: The sudden entry of a heavy, driving drum beat with washy cymbals on the downbeat of the bridge, shifting the energy from ballad to anthem.",
  "title": "回潮线",
  "lyrics": "[intro]\n(Mix: Clean, spacious mix. Piano centered with wide stereo reverb tail. Low-end present but controlled. Smooth, polished highs. Transparent master bus compression.)\n(Inst: Solo grand piano playing arpeggiated chords and a simple melodic motif. Close-mic'd sound with audible pedal sustain.)\n(Hook-DNA: Rhythmic Pattern: Dotted-quarter followed by three eighth notes, landing on downbeat of next bar; Pitch Anchor: Motif circles the 5th and 3rd, resolving to tonic at phrase end; Repetition: Motif stated, then repeated with slight variation.)\n(Chords: C# - G#/C - A#m - G#sus4 - G#)\n\n[verse]\n(Transition: Piano holds final chord as soft vocal enters.)\n(Melody-Contour: Narrow range, conversational rhythm; phrases descend gently to the 3rd or root; mostly on-the-beat.)\n(Vocal-Perf: Soft, breathy chest voice; mezzo-piano; minimal vibrato; intimate delivery.)\n(Inst: Piano continues with sparse arpeggios providing harmonic support.)\n(Chords: C# - G#/C - A#m7 - G# - F# - C#/F - D#m7 - G#sus4 - G#)\n散场之后 车流把人群带走\n我在停车场的角落里坐了很久\n那些祝酒的笑声贴着骨头走\n等安静下来 才发现空无一手\n\n[chorus]\n(Transition: Vocal melody leaps up on the pickup to the downbeat, dynamic swell.)\n(Melody-Contour: Ascending leap to higher register; sustained notes on strong beats; stepwise descent at phrase ends.)\n(Melody-Harmonic-Tension: Melody holds the 9th over the I chord on the word \"不坚定\", creating tension before resolving down to the 5th.)\n(Hook-Recall: Piano accompaniment subtly incorporates the rhythmic motif from the Hook-DNA underneath the sustained vocal melody.)\n(Vocal-Perf: Stronger chest/mix voice; mezzo-forte; vibrato on sustained notes.)\n(Inst: Piano becomes more chordal. Soft electronic kick and a layered snap/clap enter, establishing a half-time groove.)\n(Mix: Vocals pushed slightly forward in the mix.)\n(Chords: F# - G# - C# - A#m - F# - G# - C#)\n我学会在人群里 呼吸得很稳\n学会把「还好吗」三个字回答得很准\n可一个人上高速 没有人问\n所有的克制 才开始涌\n眼眶酸 是我今年最诚实的事\n\n[interlude]\n(Transition: Vocal fades out with a long reverb tail, piano takes over the melody.)\n(Melody-Contour: Piano plays an instrumental interpretation of the main chorus vocal melody.)\n(Inst: Piano is the lead. Kick and snap continue. A clean synth sub-bass enters, doubling the piano's root notes.)\n(Mix: Piano brought forward to fill the melodic space.)\n(Chords: C# - G#/C - A#m - G# - F# - C#/F - D#m7 - G#sus4 - G#)\n\n[verse]\n(Transition: Piano melody resolves, leaving space for vocal re-entry.)\n(Melody-Contour: New melodic idea, higher register than first verse; more syncopation; phrases feel more questioning.)\n(Vocal-Perf: Tone becomes slightly more urgent; dynamics build from mezzo-piano to mezzo-forte.)\n(Inst: Piano, bass, kick, snap continue. A crisp 16th-note hi-hat pattern is added, increasing rhythmic density.)\n(Chords: D#m7 - G# - C# - F# - D#m7 - G# - C# - A#m7)\n路灯把我的影子 拉得很长\n像把这一整年都摊开在地上\n我一直以为 合群就是到达\n原来那扇门后 我从没有进场\n融进热闹是本能\n离开以后才算数\n\n[chorus]\n(Transition: A simple 8th note snap fill leads into the downbeat.)\n(Melody-Contour: Same as first chorus but with higher dynamic intensity and slight melodic variations.)\n(Melody-Harmonic-Tension: Same tension point on the 9th over I chord, but the vocal holds it with more power and a crescendo.)\n(Hook-Recall: The piano's rhythmic motif is now more pronounced and chordal.)\n(Vocal-Perf: Full belt voice; forte; prominent vibrato; brief ad-libs towards the end.)\n(Inst: Lush synth string pads enter. Drums are fuller, with washy cymbal swells at phrase ends.)\n(Mix: Stereo field widens significantly with strings. Vocal has a longer reverb tail.)\n(Chords: F# - G# - C# - A#m - F# - G# - C#)\n我学会在人群里 呼吸得很稳\n学会把「还好吗」三个字回答得很准\n可一个人上高速 没有人问\n所有的克制 才开始涌\n眼眶酸 是我今年最诚实的事\n\n[bridge]\n(Transition: All instruments cut out on the final word of the chorus, then a heavy drum beat crashes in on the downbeat.)\n(Melody-Contour: Rhythmic and declamatory; repeated notes building tension; phrases ascend, peaking on the final word.)\n(Melody-Harmonic-Tension: Melody hammers on the root and 5th against a driving progression, creating rhythmic and dynamic tension rather than complex harmonic clashes.)\n(Vocal-Perf: Forceful, almost strained belt; maximum dynamic level.)\n(Inst: Drums shift to a powerful backbeat with heavy kick/snare and cymbal crashes. Piano plays strong block chords. Strings swell dramatically.)\n(Mix: Mix is at its loudest and densest. Drums pushed forward.)\n(Chords: F# - G# - A#m - C# - F# - G# - C#)\n孤独不是没有人陪\n是笑声退潮以后 胸腔里的那片空地\n我站在那里\n\n[outro]\n(Transition: Drums and strings cut out abruptly, leaving only piano and vocal.)\n(Melody-Contour: Descending line, decelerating tempo; final phrase is soft, ending on the 3rd.)\n(Vocal-Perf: Volume drops to piano; breathy, resigned tone; final line is almost a whisper.)\n(Inst: Piano plays final chords, slowing down and fading out.)\n(Mix: Reverts to a sparse, intimate feel. Long reverb tails on final piano chords.)\n(Chords: F# - G# - C#)\n只有我知道这里\n只有我知道这里",
  "cover_prompt": "生成一张无字音乐专辑封面。风格严格参照 20 世纪 Color Field Painting（色域绘画），如 Mark Rothko 晚期作品的色层叠压逻辑与 Helen Frankenthaler 的浸染法（soak-stain technique）。画面的核心色彩与情绪：深夜高速公路归途中车窗外的冷蓝与内心涌动的暖琥珀交叠——大面积的深青灰蓝在画面上方沉压，中段渐渗出一道低饱和的琥珀暖黄，像灯光在潮湿路面上最后一次漫开，下方收束回深灰近黑，整体色调内敛、压抑中带一丝无声的释放。技法要求：色彩之间的过渡必须模拟颜料在未上浆的粗纹棉布（raw cotton canvas）上自然渗透、晕开的效果，边界柔软但保留颜料浓度不均匀造成的自然深浅变化（pigment pooling）。画面需要呈现真实画布的编织肌理（woven canvas texture），局部可见稀薄处透出的底布纹路。整体色调偏低饱和、微微发灰（muted, desaturated palette），避免荧光感和数字渐变的均匀平滑。绝对禁止：任何文字/字母/拼音、人物或人物轮廓、具象物体、几何图案、锐利边缘、胶片颗粒滤镜、3D渲染质感。",
  "cover": {
    "template_id": 1,
    "template_name": "环境光晕流",
    "scene_description": "深夜高速公路归途中车窗外的冷蓝与内心涌动的暖琥珀交叠——大面积的深青灰蓝在画面上方沉压，中段渐渗出一道低饱和的琥珀暖黄，像灯光在潮湿路面上最后一次漫开，下方收束回深灰近黑，整体色调内敛、压抑中带一丝无声的释放"
  }
}