{
  "song_id": "02_唯一_20260512",
  "prompt": "Genre: Mandopop / Ballad / R&B; BPM: 144; Key: Db Major; Rhythm: Half-time ballad groove, piano-driven rhythm, kick on 1/snare on 3, slightly behind grid.; Instruments: Felt grand piano, warm, reverbed; swelling string section, subtle; deep kick drum, roomy; big reverb snare; sub-bass synth, low sustain.; Vocals: Female; wide range from breathy low chest to powerful, raspy belt; controlled vibrato; R&B runs; clean reverb, subtle delay.; Melody: Ascending arch in chorus; syncopated phrases; ends on tonic.; Mood: Rain blurring city lights from a high-rise window, feeling trapped and alone.; Production: High-fidelity, polished warmth; wide stereo image, vocal-centric; transparent compression.; Language: Mandarin; Highlight: The sudden octave jump and timbral break to a raw cry on the third beat of a chorus phrase, exposing vulnerability.",
  "title": "皮面朝外",
  "lyrics": "[intro]\n(Hook-DNA: Rhythmic: dotted-eighth-sixteenth arpeggio pattern on piano, emphasizes beat 1 and 'and' of 2. Pitch: Motif circles the 3rd and 5th of the tonic chord, resolves down to root on final bar. Repetition: Pattern repeats, modulating through chord progression.)\n(Mix: Baseline. Wide stereo field. Piano is center-wide with lush hall reverb. Vocals will be dry, upfront, centered. Minimal transparent compression, preserving dynamics. Smooth high-end, warm low-mids.)\n(Inst: Solo grand piano, felt hammer sound, prominent sustain pedal noise, warm tone.)\n(Chords: Db - Ab/C - Bbm7 - Gb)\n\n[verse]\n(Transition: Piano holds final chord, slight decrescendo into vocal entry.)\n(Melody-Contour: Narrow range, conversational, speech-rhythm; phrases descend to 3rd or root.)\n(Vocal-Perf: Breathy, close-mic'd chest voice, mezzo-piano, no vibrato.)\n(Inst: Piano continues arpeggiated pattern, slightly sparser.)\n(Chords: Db - Ab/C - Bbm7 - Gb - Ebm7 - Ab7)\n五根手指摊在冷面上\n热度压进那层透明中\n出风口送来一阵无名的风\n脊骨分不清冷暖 只觉得空\n\n[chorus]\n(Transition: Piano plays block chords on downbeats building into chorus as strings swell.)\n(Hook-Recall: Vocal melody adopts the piano's dotted-eighth-sixteenth rhythm from the intro on key phrases.)\n(Melody-Contour: Stepwise ascending line on pre-chorus phrase, then a wide ascending arch for the main chorus, peaks on a sustained high note, then descends.)\n(Melody-Harmonic-Tension: Melody holds the 9th over the V chord for a full bar, creating tension before resolving down to the tonic I chord.)\n(Vocal-Perf: Builds from mezzo-forte to a powerful, open-throated belt, controlled vibrato.)\n(Inst: Full texture. Deep kick drum, big reverb snare. Piano plays fuller chords. Strings are prominent. Sub-bass doubles piano root.)\n(Mix: Stereo image widens. Vocals have parallel compression added for body.)\n(Chords: Gb - Ab - Db - Bbm7 - Gb - Ab - Db)\n这里的里面也是外\n我以为隔着什么就能不算在内\n却发现内外都没有我的位置\n松开手 那片雾比我先不见\n\n[verse 2]\n(Transition: Band cuts out, leaving only piano and a lingering reverb tail.)\n(Melody-Contour: More rhythmic and syncopated than first verse, alternates short and long phrases.)\n(Vocal-Perf: Returns to a softer dynamic, but with more forward placement and less breathiness than verse 1.)\n(Inst: Piano only, playing a slightly different, more syncopated chordal pattern.)\n(Chords: Gbmaj7 - Db/F - Ebm7 - Bbm7 - Ebm7 - Fm7 - Gb - Ab)\n以为只是借住这一层\n袜子底下传来细小的颤\n不是声音 是楼下马路的回响\n城市只剩震动 钻进皮肤撑\n脚掌已经认得这块地板的纹\n\n[chorus 2]\n(Transition: Vocal pickup with a slight crescendo, drums enter with a soft cymbal swell.)\n(Hook-Recall: Vocal melody again incorporates the core dotted-eighth-sixteenth rhythmic motif.)\n(Melody-Contour: Same wide ascending arch as first chorus, but with more ad-libs and runs.)\n(Melody-Harmonic-Tension: Repeats the tension pattern, holding the 9th over the V chord, but the vocal holds it longer and with more intensity.)\n(Vocal-Perf: Full power belt, forte, with emotional vocal breaks and raspy texture. More complex R&B runs.)\n(Inst: All instruments from first chorus return, strings louder and more layered. Drums are slightly more complex.)\n(Mix: Mix is at its densest and widest. Vocal delay throws are more audible.)\n(Chords: Gb - Ab - Db - Bbm7 - Gb - Ab - Db)\n这里的里面也是外\n我以为隔着什么就能不算在内\n玻璃是我还是我是那层皮\n却发现内外都没有我的位置\n松开手 那片雾比我先不见\n\n[bridge]\n(Transition: Music drops to just piano and a high, sustained string pad.)\n(Melody-Contour: Phrases start high and descend, creating a feeling of resignation.)\n(Melody-Harmonic-Tension: Melody consistently ends phrases on the 2nd degree over the V chord, withholding resolution and creating a hanging, questioning feeling until the final line.)\n(Vocal-Perf: Dynamic drops to piano, intimate and fragile, mostly head voice.)\n(Inst: Sparse piano chords, high string pad.)\n(Mix: Narrowed stereo field, focusing on the intimate vocal. Reverb becomes more prominent.)\n(Chords: Bbm - F/A - Ab - Db/F - Gb - Db/F - Ebm7 - Ab)\n其实门从来没有锁上\n我只是从未走那个方向\n不是出不去\n是我的重心一直朝着这面墙\n\n[outro]\n(Transition: Final word of bridge fades into solo piano.)\n(Inst: Solo piano plays the intro arpeggio pattern one last time.)\n(Mix: Reverb tail from piano fades to silence.)\n(Chords: Db)",
  "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：深冷的青灰色占满画布大部分，靠近画面中央略偏低处渗出一块近乎体温的浅赭白，形状不规则，四边向深色慢慢溶失，既像是从内部透出来的又像是从外部印进去的，内外界限无从分辨。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": "深冷的青灰色占满画布大部分，靠近画面中央略偏低处渗出一块近乎体温的浅赭白，形状不规则，四边向深色慢慢溶失，既像是从内部透出来的又像是从外部印进去的，内外界限无从分辨"
  }
}