{
  "song_id": "",
  "prompt": "Genre: Mandopop / Indie Rock; BPM: 72; Key: C Major; Chords: Verse: Am-G-C-F; Chorus: F-C-G-Am; Rhythm: Spacious half-time rock beat, kick on 1 & 3, snare on 2 & 4 with a slight drag, simple eighth-note hi-hats, root-note focused clean bassline.; Instruments: Live drum kit, clean electric bass, clean arpeggiated rhythm electric guitar (panned), melodic lead electric guitar with delay and reverb, subtle atmospheric synth pads.; Vocals: Male tenor, gentle and earnest timbre, slightly breathy, mid-range delivery. Light, spacious reverb and delay processing.; Mood: Nostalgic, melancholic, yearning, hopeful, bittersweet.; Production: Clean, balanced mix with good stereo width. Guitars are panned to create space. Vocals sit comfortably within the instrumentation. Natural, medium-room reverb on most elements.; Structure: Intro - Verse - Chorus - Verse - Bridge - Chorus - Interlude - Outro; Language: Mandarin; Highlight: The poignant lyrical theme of reincarnation and eternal love, set against a backdrop of melancholic yet hopeful indie rock instrumentation.",
  "title": "旧巷",
  "lyrics": "[intro]\n(Inst: Single electric guitar plays a clean, arpeggiated melody with light delay. Subtle bass and cymbal swells enter. Minimalist, atmospheric.)\n(Chords: Am - G - C - F)\n(Mix: Guitar centered, then widens as bass enters.)\n\n[verse]\n(Inst: Full drum beat enters, half-time feel. Bass plays root notes. Rhythm guitar continues arpeggios. Sparse arrangement.)\n(Vocal-Perf: Soft, narrative, almost spoken, gentle delivery.)\n(Chords: Am - G - C - F)\n三月末我拎着半空的箱子踏上那条归途\n黄昏正落 整座小镇笼在一层灰白的薄雾\n巷口的围墙推倒之后盖起了三层高的门面铺\n我沿着记忆拐弯 每一步都踩在不确定的深处\n你家旧址变成棋牌室 门口坐着下棋的老人在赌\n我在原地站了好久 喉咙发紧\n连一句完整的话都说不出\n\n[pre-chorus]\n(Inst: Drums build slightly with light snare fills. Lead guitar enters with a distant melodic line. Energy rises.)\n(Vocal-Perf: More melodic, increased volume, building emotion.)\n(Chords: Dm - Am - G - C)\n可你怎么还认得出我\n十几年了 翻遍了所有角落没找到一张合影的痕迹\n那时候穷得连胶卷都不舍得浪费\n只好把你的样子 刻在骨头里\n\n[verse]\n(Inst: Arrangement continues, lead guitar adds more fills between vocal lines.)\n(Vocal-Perf: Returns to a narrative tone, but with more emotional weight.)\n(Chords: Am - G - C - F)\n夏天的尽头有片麦田连着河岸 风一吹金黄地摇摆\n你骑那辆掉了链子的破车在田埂上歪歪扭扭撒着赖\n我们甩掉书包光脚踩进水里 冰得嗷嗷叫着蹦起来\n你说长大了一定要翻过这座山去看海\n后来我真的去了 浪拍在礁石上的声响\n跟你笑起来一样 空旷又坦白\n\n[pre-chorus]\n(Inst: Drums become more insistent, cymbal crashes on chord changes. Lead guitar melody more prominent.)\n(Vocal-Perf: Stronger, more sustained notes. Clear crescendo.)\n(Chords: Dm - Am - G - C - G)\n每个暑假结束我们都说来年九月再见\n可后来的后来啊 距离拉得越来越远\n连告别都省了 散在人海里就再没碰过面\n(Transition: Snare roll into chorus.)\n\n[chorus]\n(Inst: Full band energy. Guitars are layered, one strumming chords, one playing lead melody. Bass is driving. Synth pads add width.)\n(Vocal-Perf: Open, emotional, soaring 'Ooh's, harmonized background vocals enter.)\n(Mix: Wide, full, vocals centered but blended with reverb.)\n(Chords: F - C - G - Am)\n嗯 别走远 别走远了\n我攒了好多年的话还没说完\n嗯 别走远 别走远了\n那些欠你的夏天还不完\n嗯 别走远 别走远了\n怕一转身又隔了几十年\n嗯 别走远 别走远了\n再给我最后一次遇见\n\n[interlude]\n(Inst: Instrumental break. Lead guitar takes center stage with an emotive, melodic solo, heavy on delay and reverb. Rhythm section holds a steady groove.)\n(Chords: F - C - G - Am)\n(Mix: Guitar solo is front and center.)\n\n[verse]\n(Inst: Dynamics drop. Drums simplify to just kick and hi-hat. Bass becomes more melodic. Clean guitar arpeggios return.)\n(Vocal-Perf: Intimate, close-mic'd feel. Almost a whisper.)\n(Chords: Am - G - C - F)\n去年深冬在南方某座城的地铁口碰见你母亲\n她头发全白了 笑起来却还是那么轻盈\n拉着我的手说你在海边安了家 日子过得安宁\n偶尔还提起巷子里那个甩不掉的跟屁虫\n她替你问了一句你还好吗\n我拼命点头 可眼眶酸得再也绷不住那层平静\n\n[bridge]\n(Inst: Music swells gradually. Drums re-enter with snare. Synth pads become more prominent.)\n(Vocal-Perf: Builds from gentle to powerful. A sense of final resolution.)\n(Chords: Dm - Am - F - C - G)\n别哭啊 那些走散的人不是真的走远\n时间是条河 它绕完一整圈又淌回原点\n名字会忘 长相会换\n可那年夏天水花溅上脸的温度不会骗\n\n[post-bridge]\n(Inst: Band hits full power again, driving towards the final chorus.)\n(Chords: Am - G - C - F)\n在某条翻新过的巷弄里 在黄昏烧尽天际\n在万家灯火中某一扇窗纱的背后\n我们终会以陌生人的身份重新相聚\n(Transition: Drum fill with crashing cymbals.)\n\n[chorus]\n(Inst: Maximum energy. Drums are powerful. Layered guitars create a wall of sound. Background vocals are loud and angelic.)\n(Vocal-Perf: Full-voiced, passionate, cathartic.)\n(Mix: Very wide, dense, epic feel.)\n(Chords: F - C - G - Am)\n嗯 别走远 别走远了\n我攒了好多年的话还没说完\n嗯 别走远 别走远了\n再给我最后一次遇见\n\n[outro]\n(Inst: Music begins to break down. Drums drop out, leaving just bass and shimmering guitars.)\n(Vocal-Perf: Last line delivered softly, with heavy reverb trail.)\n(Chords: F - C - G - C)\n我好像又看见你了\n(Transition: Single sustained guitar note with delay feedback fades to silence.)\n(Sound-Design: Final lingering echo of the vocal.)",
  "cover": {
    "template_id": 1,
    "template_name": "复古空旷风景流",
    "scene_description": "一条泥泞的乡间土路笔直通向天际线尽头，两侧是大片已经枯黄发白的芦苇荡在风中缓慢摇曳，天空被黄昏染成从琥珀色渐变到灰紫色的过渡带，远处一座低矮的山丘轮廓快要被暮色彻底吞没，整个画面弥漫着一种被时间冲淡却仍然温热的、即将熄灭的余光",
    "cover_prompt": "生成一张拍立得（Polaroid）风格的无字版音乐专辑封面。画面描绘的是：一条泥泞的乡间土路笔直通向天际线尽头，两侧是大片已经枯黄发白的芦苇荡在风中缓慢摇曳，天空被黄昏染成从琥珀色渐变到灰紫色的过渡带，远处一座低矮的山丘轮廓快要被暮色彻底吞没，整个画面弥漫着一种被时间冲淡却仍然温热的、即将熄灭的余光。整体画面必须呈现真实拍立得相片的质感：略微过曝的柔和光线、轻微偏色的复古色调、自然的暗角和柔焦边缘、细腻的胶片颗粒感。色彩是褪色、怀旧的暖色调，仿佛一张被遗忘在抽屉里多年的即时成像照片。强烈要求：画面必须是纯粹的风景，绝对不要出现任何人物、人影、手或脸！绝对不要生成任何文字、字母、歌名或水印！保持空灵、孤独和冥想的氛围。",
    "selection_reason": "歌曲核心情绪是对故乡旧友的深沉怀念与时光流逝的无力感，BPM 72的慢速indie rock带着浓烈的怀旧与惆怅，模板一的复古空旷风景最能承载这种'回不去的路'的孤独感与余温尚存的温柔。"
  }
}