{
  "song_id": "01_恋人_20260512",
  "prompt": "Genre: Mandopop / Ballad; BPM: 140; Key: Eb Major; Rhythm: Half-time backbeat (kick 1, snare 3), straight 8th-note hi-hats; precise, on-the-grid feel; Instruments: Close-mic'd acoustic guitar; clean single-coil e-guitar; round, clean e-bass; tight, dry drum kit; lush, wide string section; Vocals: Male baritone, breathy conversational verses, clear open chorus; controlled, minimal vibrato; clean, present, plate reverb; Melody: Verse: conversational, narrow range. Chorus: wide-ranging, ascending arch; long legato phrasing; Mood: Sitting alone in a dusty attic, holding an old Walkman, the faint smell of rain outside the window; Production: Hi-fi clarity, analogue warmth; wide stereo image, vocal-centric mix; smooth transparent compression; Language: Mandarin; Highlight: The downbeat of the first chorus, where the full drum kit and lush string orchestra enter simultaneously, creating a sudden cinematic lift",
  "title": "倒带到底",
  "lyrics": "[intro]\n(Hook-DNA: quarter-eighth-eighth arpeggio pattern on beats 1-2, rest on 3-4; anchors on the tonic; repeats twice, third statement varies rhythmically)\n(Inst: Fingerpicked steel-string acoustic guitar, close-mic'd, slight finger noise; ambient synth pad swells)\n(Chords: Eb - Ab - Eb - Bb/D - Cm - Ab - Eb/Bb - Bb - Eb)\n(Mix: Vocal-centric, wide stereo field. Hi-fi clarity with analogue warmth. Drums dry and centered. Bass clean and centered. Guitars panned slightly. Strings create wide backdrop. Smooth plate reverb on vocals and snare.)\n\n[verse]\n(Melody-Contour: Narrow range, stepwise motion; phrases land on tonic; speech-rhythm, slightly behind beat)\n(Transition: Synth pad swell holds over into verse.)\n(Inst: Acoustic guitar continues, clean electric bass enters playing root notes, minimal kick drum pattern)\n(Vocal-Perf: Breathy, soft chest voice; intimate and conversational; mezzo-piano)\n(Chords: Eb - Ab - Eb - Bb/D - Cm - Ab - Eb/Bb - Bb - Eb)\n(Mix: Bass and kick added to center, maintaining intimate space)\n阁楼的木板嘎吱响了一下又一下\n积灰的纸箱堆在窗口\n翻出那台压扁的旧Walkman\n橡皮筋勒紧 勒了多少个年头\n有盒磁带没有标签也没有名字留\n\n[pre-chorus]\n(Melody-Contour: Gentle ascent in pitch and dynamics; builds tension towards chorus; phrases end on 5th)\n(Transition: Full drum kit fill for one beat leading into section.)\n(Inst: Full drum kit enters with a simple backbeat; bass becomes more active with passing notes)\n(Vocal-Perf: Dynamic builds from mezzo-piano to mezzo-forte; more direct tone, less breathy)\n(Chords: Ab - Eb/G - Fm - Bb)\n手指按下那个褪色的播放键\n磁带咬住 开始转\n等了三秒 四秒 还没散\n忽然有个声音从喇叭里钻出来\n\n[chorus]\n(Hook-Recall: The main vocal melody's rhythmic phrasing echoes the intro guitar's long-short-short pattern.)\n(Melody-Contour: Wide-ranging, ascending arch, peaks mid-phrase; long legato phrasing; resolves on tonic at phrase end)\n(Melody-Harmonic-Tension: Melody holds the 9th over the initial Eb chord, creating a sweet tension before resolving down; lands on the major 7th over the Ab chord to lead forward.)\n(Transition: Drum fill and subtle string swell rise into the chorus downbeat.)\n(Inst: Lush, wide string section enters with sustained chords and countermelodies; acoustic guitar switches to strumming)\n(Vocal-Perf: Open, clear chest voice; mezzo-forte to forte; layered backing vocals on key phrases)\n(Chords: Eb - Gm - Ab - Eb/G - Cm - Fm - Bb - Eb)\n(Mix: Stereo image widens significantly with strings; energy lifts)\n按下播放 听见自己十六岁\n那个声音嫌弃世界 又迷恋一切\n越往前走 越像站在原地\n脚踩着现在 心还在那年夏天\n\n[verse]\n(Melody-Contour: Narrow range, stepwise motion; phrases land on tonic; speech-rhythm, slightly behind beat)\n(Transition: Energy recedes after chorus; strings fade back; intimate space restored)\n(Inst: Acoustic guitar returns to fingerpicking; bass settles; kick drops back to minimal)\n(Vocal-Perf: Breathy, soft chest voice; intimate and conversational; mezzo-piano)\n(Chords: Eb - Ab - Eb - Bb/D - Cm - Ab - Eb/Bb - Bb - Eb)\n(Mix: Mix returns to sparse intimate feel)\n磁带的齿轮把时间越拧越紧走\n喇叭里有人正在唱歌哼小调\n那声音跟我现在的声音对上头\n我把磁带倒到底 才听出来那个开口\n是十六岁的我 对着录音机开口\n\n[pre-chorus]\n(Melody-Contour: Gentle ascent in pitch and dynamics; builds tension towards chorus; phrases end on 5th)\n(Transition: Full drum kit fill for one beat leading into section.)\n(Inst: Full drum kit enters with a simple backbeat; bass becomes more active with passing notes)\n(Vocal-Perf: Dynamic builds from mezzo-piano to mezzo-forte; more direct tone, less breathy)\n(Chords: Ab - Eb/G - Fm - Bb)\n他说他以后要去很远的地方看\n他说他不会怕 不会软\n他说他会把那个胆怯的自己换掉散\n然后磁带就在这里断\n\n[chorus]\n(Hook-Recall: The main vocal melody's rhythmic phrasing echoes the intro guitar's long-short-short pattern.)\n(Melody-Contour: Wide-ranging, ascending arch, peaks mid-phrase; long legato phrasing; resolves on tonic at phrase end)\n(Melody-Harmonic-Tension: Melody holds the 9th over the initial Eb chord, creating a sweet tension before resolving down; lands on the major 7th over the Ab chord to lead forward.)\n(Transition: Drum fill and subtle string swell rise into the chorus downbeat.)\n(Inst: Lush, wide string section enters with sustained chords and countermelodies; acoustic guitar switches to strumming)\n(Vocal-Perf: Open, clear chest voice; mezzo-forte to forte; layered backing vocals on key phrases)\n(Chords: Eb - Gm - Ab - Eb/G - Cm - Fm - Bb - Eb)\n(Mix: Stereo image widens significantly with strings; energy lifts)\n按下播放 听见自己十六岁\n胸口像被什么东西压着不散\n越往前走 越像站在原地\n那个少年还住在我身体里面\n\n[bridge]\n(Melody-Contour: Declamatory, speech-like rhythm; phrases start low and rise sharply; mostly syllabic)\n(Melody-Harmonic-Tension: Melody emphasizes the #4 over the tonic chord, creating a Lydian feel and a sense of fantasy, resolving upwards to the 5th.)\n(Transition: Final chord holds, strings sustain, drums drop out leaving a simple fill.)\n(Inst: Band drops back to bass, drums, and a clean electric guitar melody; strings play soft pizzicato)\n(Vocal-Perf: Rhythmic and spoken-like delivery; builds intensity)\n(Chords: Abmaj7 - Gm7 - Fm7 - Bb11)\n(Mix: Mix narrows, becomes more focused and dry)\n我以为我早就和那段时光和解完\n以为那些年都被我打包放得很远\n阁楼里一个下午把我全推翻\n我把那盒磁带倒到底\n才发现里面录的是我自己的声音\n\n[chorus]\n(Hook-Recall: The main vocal melody's rhythmic phrasing echoes the intro guitar's long-short-short pattern.)\n(Melody-Contour: Wide-ranging, ascending arch, peaks mid-phrase; long legato phrasing; resolves on tonic at phrase end)\n(Melody-Harmonic-Tension: Melody holds the 9th over the initial Eb chord, creating a sweet tension before resolving down; lands on the major 7th over the Ab chord to lead forward.)\n(Transition: Massive drum fill into final chorus after a held chord.)\n(Inst: All elements from first chorus are present; added electric guitar obbligato weaving around the vocal)\n(Vocal-Perf: Most powerful delivery; full forte; ad-libs in upper register; dense backing vocal harmonies)\n(Chords: Eb - Gm - Ab - Eb/G - Cm - Fm - Bb - Eb)\n(Mix: Widest and loudest point of the song)\n按下播放 听见自己十六岁\n那个声音把我整个人劈成两半\n越往前走 越像站在原地\n我根本没有离开过那个房间\n原来我从来没有真的离开那年\n\n[outro]\n(Melody-Contour: N/A - instrumental)\n(Transition: Decrescendo on the final chord, band fades out except for guitar.)\n(Inst: Fades out on the intro's acoustic guitar figure, joined by a solo violin theme; final sustained string chord)\n(Chords: Eb - Ab - Eb)\n(Mix: Gradual fade out, reverb tails become prominent as instruments disappear)",
  "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：一个边缘自然晕散的同心圆波纹墨迹，如同声波在静止水面扩散后忽然凝固，处于从深暖褐色到灰米白的渐变宣纸背景中，波纹中心极深、边缘极淡，像一种被时间反复覆写又无法抹去的印记。技法要求：圆形波纹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。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": "一个边缘自然晕散的同心圆波纹墨迹，如同声波在静止水面扩散后忽然凝固，处于从深暖褐色到灰米白的渐变宣纸背景中，波纹中心极深、边缘极淡，像一种被时间反复覆写又无法抹去的印记"
  }
}