{
  "song_id": "01_夜曲_20260418",
  "prompt": "Genre: Mandopop / R&B / Classical Fusion; BPM: 87; Key: F minor; Rhythm: Slow, deliberate hip-hop groove. Heavy backbeat on 2 and 4. Clean 16th-note hi-hats. Somber, marching feel.; Instruments: Nylon-string guitar (arpeggiated melody), grand piano (classical arpeggios), 808-style sub bass, hip-hop drum machine, subtle orchestral string pads.; Vocals: Male tenor, light and slightly nasal. Rhythmic, semi-rapped verse delivery transitioning to a smooth, melodic chorus. Cool, detached emotional tone.; Mood: Watching a single white rose wilt in a black vase under a flickering gas lamp on a rainy night.; Production: High-fidelity, polished studio sound. Wide stereo image, vocals upfront, clean mix with atmospheric reverb. Radio-ready warmth.; Language: Mandarin; Highlight: The moment the grand piano enters with its classical arpeggio on the downbeat of the first chorus, lifting the track from a rhythmic verse into a sweeping melodic hook.",
  "title": "候鸟季",
  "lyrics": "[intro]\n(Chords: Fm - Db - Ab - Eb)\n(Inst: Nylon-string guitar plays main arpeggiated motif over a slow hip-hop beat. Hook DNA established.)\n(Mix: Centered guitar, spacious reverb on snare.)\n(Energy: 1/10, setting a somber scene.)\n\n[verse]\n(Chords: Fm - Db - Ab - Eb)\n(Vocal-Perf: Rhythmic, almost-spoken delivery; mezzo-piano; cool and detached.)\n(Melody-Rhythm: Conversational, syncopated against the beat.)\n(Inst: Beat and guitar continue as foundation. Bass enters, providing minimal support.)\n(Mix: Vocals dry and upfront, intimate.)\n(Transition: Subtle synth pad swells slightly at the end of the section.)\n父亲的老收音机锁在柜子里\n频道旋钮转到最后一格停止\n十一月的候鸟不经过这座城\n我站在天台数了三十分钟的云\n楼下修鞋的老人换了一拨\n对面那棵树锯掉半截去年冬\n什么都在替换 什么都在移动\n只有我还站在这个出租屋\n对着同一扇窗等一个不会出现的人\n\n[pre-chorus]\n(Chords: Bbm - Fm - C7 - Fm)\n(Vocal-Perf: Slightly more melodic, builds tension, still restrained.)\n(Melody-Contour: Ascending line leading into chorus.)\n(Inst: Chord changes create harmonic movement. String pads become more prominent.)\n(Mix: Stereo field widens slightly.)\n(Sound-Design: A low, distant choir-like pad.)\n啊 搬家时拆下来的挂钩\n留了个圆形的痕迹在墙\n我用钢笔描了一遍那个圈\n当作你的脸来端详\n那些没说完的话塞进抽屉缝\n越压越往深处钻\n地铁报站的声音传上来\n每一站 我都以为是你要来\n结果是别人家的门关上\n留下的 离开的 轮番登场\n啊 我学会了用背景音\n啊 代替那些缺席的声音\n骗自己不在乎\n\n[chorus]\n(Chords: Fm - Db - Ab - Eb)\n(Vocal-Perf: Fully melodic, sung with clear tone; mezzo-forte; sustained notes.)\n(Inst: Grand piano enters with flowing classical arpeggios, defining the hook. Strings swell underneath.)\n(Mix: Piano and strings create a wide, cinematic backdrop. Vocals sit comfortably in the center.)\n(Energy: 6/10, emotional peak of the song.)\n(Transition: Beat drops out for the final phrase, leaving voice and piano hanging before verse re-entry.)\n候鸟不落脚的城市里\n我替你保管着那把旧雨伞\n伞骨断了一根没有修\n像我们某句话说到一半\n停在那里\n我撑着它走过整个雨季\n淋湿的那边始终是你那侧\n\n[verse]\n(Chords: Fm - Db - Ab - Eb)\n(Vocal-Perf: Returns to rhythmic, spoken style; consistent with first verse.)\n(Inst: Arrangement strips back to guitar, bass, and drums.)\n(Mix: Focus returns to the intimate, centered vocal.)\n(Energy: 2/10, dynamic drop after the chorus.)\n冰箱贴上贴着你写的那个字\n「记得买盐」 已经过了两年期\n我把盐买了又买 从未短缺\n却始终没撕掉那张纸\n\n[bridge]\n(Chords: Bbm - Fm - C7 - Fm)\n(Vocal-Perf: Builds intensity again, a sense of quiet desperation.)\n(Melody-Contour: Stepwise melodic rise.)\n(Inst: Piano re-enters with sparse chords, supporting the vocal build.)\n(Mix: Reverb on vocals increases slightly, creating more space.)\n(Transition: A clean break with a single piano chord leading into the final chorus.)\n有人说时间是最好的解药\n我吃了整整两个秋天\n副作用是每次候鸟过境\n我都要上天台站一遍\n等一场迁徙里不存在的相遇\n\n[chorus]\n(Chords: Fm - Db - Ab - Eb - Bbm - C7)\n(Vocal-Perf: Most emotive performance; dynamics pushed to forte on key phrases.)\n(Inst: Full ensemble - piano arpeggios, driving beat, lush string arrangement.)\n(Mix: Widest and fullest point of the track. All elements present.)\n(Energy: 7/10, final emotional release.)\n(Structure: Extended chorus with new lyrical content for finality.)\n候鸟不落脚的城市里\n我替你保管着那把旧雨伞\n今年的雨季提前结束了\n我把伞折好放进纸箱\n封上胶带\n写上日期 写上你名字\n然后把纸箱推到床底看不见的地方去\n\n[outro]\n(Chords: Fm - Db - Ab - Eb)\n(Vocal-Perf: Fades back to the rhythmic, detached delivery of the verse.)\n(Inst: Arrangement slowly deconstructs, leaving only the guitar riff and beat.)\n(Mix: Gradual fade out, elements dropping one by one.)\n(Energy: Fades from 2/10 to 0.)\n(Sound-Design: Reverb tails linger as the track fades to silence.)\n父亲的老收音机锁在柜子里\n频道旋钮转到最后一格停止\n十一月的候鸟不经过这座城\n我站在天台数了三十分钟的云\n楼下修鞋的老人换了一拨\n对面那棵树锯掉半截去年冬\n什么都在替换 什么都在移动\n只有我还站在这个出租屋\n对着同一扇窗等一个不会出现的人",
  "cover_prompt": "生成一张复古植物学插画（Vintage botanical illustration）风格的艺术图片作为无字音乐专辑封面。画面的核心是：几根纤细的枯枝向画面右上方伸展，枝杈末端挂着稀疏的、半透明的椭圆形叶片，叶脉清晰如刻，其中一枝上停着一把轮廓极简的折叠雨伞的线稿剪影，伞面微微倾斜，像一只即将起飞又迟疑的候鸟。采用极其精细、繁复的黑白墨水线稿（Intricate black ink line work）来勾勒，每一片叶脉的纹理都细腻入微（Finely detailed textures）。色彩方案为极致的单色调（Monochromatic），主体为深炭灰色的精细线条，背景为带有古典纸张质感的浅米色（Light beige background），整体透出一种褪色档案的静默气息。构图优雅且充满古典艺术气息。强烈要求：这是一张纯粹的植物/自然手绘插图，绝对不要出现任何人物、现代工业物品或3D渲染效果！画面必须是无字封面，绝对不要生成任何文字、拼音或英文字母！传达出一种优雅、纯粹、永恒且带有诗意的手工艺术气息。",
  "cover": {
    "template_id": 3,
    "template_name": "复古植物线稿流",
    "scene_description": "几根纤细的枯枝向画面右上方伸展，枝杈末端挂着稀疏的、半透明的椭圆形叶片，叶脉清晰如刻，其中一枝上停着一把轮廓极简的折叠雨伞的线稿剪影，伞面微微倾斜，像一只即将起飞又迟疑的候鸟；深炭灰色精细线条，背景为带有古典纸张质感的浅米色"
  }
}