{
  "song_id": "01_半壶纱_20260601",
  "prompt": "Genre: C-Pop / Zen Fusion; BPM: 155; Key: A minor; Rhythm: Half-time pop groove, kick on 1, clap on 3; melodic parts float slightly behind beat.; Instruments: Sampled guzheng, clear attack; breathy dizi/xiao flute; warm evolving synth pad; soft kick, subtle clap; lush, sampled strings; deep sub-bass synth.; Vocals: Female; airy, soft mezzo-soprano; breathy delivery with minimal vibrato; prominent reverb and delay.; Melody: Pentatonic, descending arches; phrases resolve on tonic; lyrical.; Mood: Watching ink dissolve in a clear bowl of water, forming slow swirling clouds.; Production: High-fidelity, smooth, polished; vocals centered in a spacious mix; transparent compression.; Language: Chinese; Highlight: The downbeat of the first chorus, where strings swell and the beat solidifies under the vocal, opening the song's emotional core.",
  "title": "折鹤渡",
  "lyrics": "[intro]\n(Hook-DNA: Rhythm: dotted-eighth + sixteenth + quarter-note; anchors around the 5th; motif repeats with slight variation, establishing contemplative mood.)\n(Inst: Guzheng lead, gentle piano chords, warm synth pad, subtle water/wind SFX.)\n(Mix: Wide stereo field; vocals centered; instruments panned for space; guzheng slightly off-center; smooth high-end, clean low-end; lush hall reverb on all elements; gentle bus compression.)\n\n(Transition: Fade in of soft kick and percussion.)\n[verse]\n(Melody-Contour: Descending stepwise motion, narrow range; phrases end on tonic; relaxed, speech-like rhythm.)\n(Vocal-Perf: Soft, breathy chest voice; airy delivery; minimal dynamics, mezzo-piano.)\n(Inst: Guzheng provides fills, pads and strings sustain, bass enters, subtle electronic beat.)\n(Chords: Am - G - C - F - C - Dm - Am - E)\n(Mix: Beat elements centered low in mix.)\n白纸叠成鸟 停在你左肩\n翅膀还未硬 已懂离别言\n院里枇杷树 压弯了一枝\n你站树影里 笑不到眼里\n那年雨水急 淋湿了围墙\n我们背靠背 躲过一场慌\n后来各自走 走进各自光\n只留那折痕 藏在指尖上\n\n(Transition: Strings swell slightly, subtle shaker adds texture.)\n[chorus]\n(Melody-Contour: Ascending leap to start phrase, higher tessitura; stepwise descent to resolve; sustained notes.)\n(Melody-Harmonic-Tension: Melody holds the 3rd over the IV chord (F), creating a stable consonance; resolves predictably to root on the final tonic chord (Am), giving a sense of release.)\n(Hook-Recall: Guzheng plays a simplified version of the intro's Hook-DNA motif as a counter-melody.)\n(Vocal-Perf: Slightly more open tone, mezzo-forte; controlled head voice on higher notes; sustained notes are clean.)\n(Inst: Full arrangement; strings more prominent, beat is clearer, Dizi flute doubles vocal melody.)\n(Chords: F - G - C - Am - F - G - Em - Am)\n你说要去很远的地方\n我说好 我点头\n心里却有什么在开裂\n折鹤渡不过这条江\n纸薄情也薄\n放开手 才知道有多重\n\n(Transition: Beat drops out, leaving only guzheng arpeggio and a sustained string note.)\n[interlude]\n(Melody-Contour: Guzheng and Dizi flute lead; call-and-response phrases; contour mirrors the verse melody.)\n(Inst: Guzheng and Dizi flute melody, pads, strings, light percussion. No vocals.)\n(Chords: Am - G - C - F - Am - E - Am)\n\n(Transition: Dizi holds a long note, strings swell to bring back energy for the chorus.)\n[chorus]\n(Melody-Contour: Ascending leap to start phrase, higher tessitura; stepwise descent to resolve; sustained notes.)\n(Melody-Harmonic-Tension: Melody holds the 3rd over the IV chord (F), creating a stable consonance; resolves predictably to root on the final tonic chord (Am), giving a sense of release.)\n(Hook-Recall: Guzheng plays a simplified version of the intro's Hook-DNA motif as a counter-melody.)\n(Vocal-Perf: Slightly more breath and emotion than first chorus, but maintains control; dynamic builds slightly.)\n(Inst: Dizi flute becomes more prominent with fills; strings swell more.)\n(Chords: F - G - C - Am - F - G - Em - Am)\n你说要去很远的地方\n我说好 我点头\n心里却有什么在开裂\n折鹤渡不过这条江\n纸薄情也薄\n放开手 才知道有多重\n\n(Transition: Vocal echo on「重」, beat and most instruments fade out.)\n[outro]\n(Melody-Contour: Fragmented phrases from chorus; descending line; slowing rhythm, ritardando.)\n(Vocal-Perf: Fades to a whisper; heavy reverb and delay tails.)\n(Inst: Fading instruments; only guzheng, pads, and piano remain at the very end.)\n(Chords: F - G - Em - Am)\n折鹤渡不过这条江 纸薄情也薄\n放开手 才知道有多重",
  "cover_prompt": "生成一张无字音乐专辑封面。风格参照日本「もの派」（Mono-ha）的物质感与李禹焕（Lee Ufan）绘画中「留白与一笔」的克制美学，结合湿拓画（Ebru / paper marbling）的有机纹理。画面核心：一张薄如蝉翼的白色折纸鹤轮廓，悬浮在大面积留白之中，边缘在湿润纸面上自然晕散，纸鹤下方是一道极淡的水痕横线，仿佛江面一瞬，整体色调从灰白渐变至极淡的青墨色，背景呈现真实手工纸的纤维质感与细微水渍痕迹，构图极度克制，纸鹤偏离中心偏右上，大面积留白占据画面左下，整体如同一张被扫描的实体版画作品而非数字生成图像。\n技法要求：几何图形的边缘必须是颜料在湿润纸面上自然扩散形成的（ink bleeding on wet paper），而非数字绘制的精准轮廓。背景需要呈现真实手工纸的纤维质感（visible paper fibers, deckled edges texture），可以带有轻微的水渍痕迹（watermark stains）和纸张泛黄的老化感。构图极度克制，大面积留白，主体偏离中心（off-center composition）。整体像一张被扫描的实体版画作品（scanned fine art print），而非数字生成图像。\n绝对禁止：任何文字/字母/拼音、人物或人物轮廓、复杂场景、风景照片感、3D渲染、塑料质感的光泽。",
  "cover": {
    "template_id": 2,
    "template_name": "几何光影艺术流",
    "scene_description": "一张薄如蝉翼的白色折纸鹤轮廓，悬浮在大面积留白之中，边缘在湿润纸面上自然晕散，纸鹤下方是一道极淡的水痕横线，仿佛江面一瞬，整体色调从灰白渐变至极淡的青墨色，背景呈现真实手工纸的纤维质感与细微水渍痕迹，构图极度克制，纸鹤偏离中心偏右上，大面积留白占据画面左下"
  }
}