{
  "song_id": "01_月牙湾_20260419",
  "prompt": "Genre: Mandopop / Pop-Rock; BPM: 172; Key: D major; Rhythm: Driving rock beat with propulsive 8th-note hi-hats. Kick on 1 & 3, snare on 2 & 4. High energy.; Instruments: Rock drums; Clean electric bass; Arpeggiated clean guitar (verses); Distorted power guitars (chorus); Singing lead guitar; Lush synth strings; Dizi-like synth lead.; Vocals: Female. Clear, bright, powerful chest voice with an emotional, slightly nasal quality. Polished delivery with delay and large reverb.; Mood: On a desert dune at twilight, wind whipping sand, searching the horizon for a caravan that might never return.; Production: High-fidelity studio sound. Wide stereo mix with a massive wall-of-sound chorus and upfront vocals.; Language: Chinese; Highlight: The explosive arrival of the full rock band and distorted guitars on the downbeat of the first chorus, creating a massive dynamic lift.",
  "title": "白桦失语",
  "lyrics": "[intro]\n(Inst: Ethereal Dizi-like synth melody over arpeggiated clean electric guitar and shimmering cymbal swells. Spacious and atmospheric.)\n(Chords: D - A - Bm - G)\n(Mix: Wide stereo field, heavy reverb.)\n\n[verse]\n(Vocal-Perf: Controlled, narrative tone, mezzo-piano.)\n(Inst: Simple rock beat and clean bass enter. Guitars continue arpeggiating, creating a steady pulse.)\n(Chords: D - A - Bm - G - D - A - Bm - G)\n(Mix: Vocals upfront and centered, mix is slightly narrower than intro.)\n削尖的铅笔没用完\n草稿纸上你签过名\n扔进垃圾桶三次\n又捡回来放进抽屉间\n旧电话号码没删\n联系人备注只剩拼音\n对自己说这无所谓\n指节却白了一整晚\n\n[pre-chorus]\n(Transition: Snare drum fill builds tension.)\n(Vocal-Perf: Crescendo in volume and intensity.)\n(Inst: Synth strings swell underneath, creating anticipation.)\n(Chords: G - D - A - Bm - G - A - D)\n走廊灯灭了又亮\n脚步声不是你的方向\n\n[chorus]\n(Transition: Cymbal crash and full band enter with maximum impact.)\n(Vocal-Perf: Powerful, full chest voice, forte.)\n(Inst: Distorted power-chord guitars create a massive wall of sound. Drums are driving and powerful. Bass is solid.)\n(Chords: Bm - F#m - G - D - G - D/F# - Em - A)\n(Mix: Expands to a huge, wide stereo image.)\n骨头缝里住着你的名\n越用力忘越记得清\n剪掉了头发换了路线\n镜子里还是那张脸啊\n胃里翻涌说不出声\n牙齿咬破了嘴唇皮\n不是不懂该放手了\n偏偏手心还留着你的温\n\n[interlude]\n(Inst: Expressive, melodic electric guitar solo over the high-energy chorus rhythm section. The solo sings the melody with bends and vibrato.)\n(Chords: Bm - F#m - G - D - G - D/F# - Em - A)\n(Mix: Lead guitar is front-and-center, soaked in delay and reverb.)\n\n[chorus]\n(Transition: Drum fill leads back into the vocal.)\n(Vocal-Perf: Peak emotional intensity, powerful ad-libs in the background during the second half.)\n(Inst: Band plays with maximum energy. Cymbal crashes are more frequent.)\n(Chords: Bm - F#m - G - D - G - D/F# - Em - A)\n(Mix: The biggest and widest point of the song.)\n骨头缝里住着你的名\n越用力忘越记得清\n剪掉了头发换了路线\n镜子里还是那张脸啊\n胃里翻涌说不出声\n牙齿咬破了嘴唇皮\n不是不懂该放手了\n偏偏手心还留着你的温\n\n[outro]\n(Structure: Full band cuts out on the final beat.)\n(Inst: The Dizi-like synth melody from the intro returns, playing a final phrase that echoes and fades into silence.)\n(Chords: D)\n(Mix: Reverb and delay tails linger and slowly decay.)",
  "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：消褪的铁灰与泛白的骨色在画布中部相互渗透，边缘隐约透出极淡的暗赤色，像一块被反复揉搓后仍留有体温痕迹的旧棉布，传达一种身体层面无法抹去的执念与钝痛。\n\n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。\n\n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": "消褪的铁灰与泛白的骨色在画布中部相互渗透，边缘隐约透出极淡的暗赤色，像一块被反复揉搓后仍留有体温痕迹的旧棉布，传达一种身体层面无法抹去的执念与钝痛"
  }
}