{
  "song_id": "06_西海情歌_20260328",
  "prompt": "Genre: Chinese folk-pop, Northwest China desert folk; BPM: 102; Key: A minor pentatonic; Rhythm: Relaxed 4/4 acoustic drum backbeat, flowing guitar arpeggios; Instruments: Layer 1 (Ethnic core): prominent, melancholic erhu melody, expressive timbre; Layer 2 (Rhythm foundation): acoustic guitar (arpeggios, strummed), deep bass, acoustic drums (snare on 2 & 4); Layer 3 (Modern production): subtle synth pad background, clean electric guitar fills; Vocals: Male, raspy male folk vocals, slightly husky, storytelling delivery, warm mid-range, clear articulation; Mood: Melancholy, longing, sense of enduring separation, evokes vast snow mountains and high plains; Production: Clear, crisp mix, vocals centered and upfront, erhu prominent and dry, natural room feel, modern elements sit behind ethnic core; Structure: Intro, Verse 1, Chorus, Bridge, Interlude, Chorus, Bridge, Outro; Language: Mandarin; Highlight: the melancholic erhu melody.",
  "title": "渡口灯",
  "lyrics": "[\n  \"[intro]\",\n  \"(Chords: Am - G - C - F)\",\n  \"(Transition: Fade in; Erhu solo enters with melancholic pentatonic melody, establishing emotional tone; Acoustic guitar arpeggios begin)\",\n  \"(Sound-Design: Sparse, echoing, high plains atmosphere)\",\n  \"(Melody-Contour: Flowing, slightly mournful erhu melody; Stepwise motion with occasional melancholic leaps)\",\n  \"(Melody-Rhythm: Sustained notes, gentle rhythmic pulse)\",\n  \"(Melody-Harmony: Primarily Am pentatonic)\",\n  \"(Inst: Erhu lead; Acoustic guitar arpeggios; Subtle synth pad)\",\n  \"[verse]\",\n  \"(Chords: Am - G - C - F)\",\n  \"(Transition: Drums and bass enter gently; Erhu fades to background)\",\n  \"(Vocal-Perf: Male, raspy, storytelling tone; Clear chest voice; Every syllable distinct; Natural phrasing, direct emotion; Moderate dynamic)\",\n  \"(Mix: Vocals centered, upfront; Acoustic guitar, bass, drums provide steady foundation; Erhu subtle backing)\",\n  \"(Melody-Contour: Conversational, relatively narrow range, clear melodic lines)\",\n  \"(Melody-Rhythm: Natural speech rhythm, unhurried delivery)\",\n  \"(Melody-Harmony: Closely follows chord tones, Am pentatonic)\",\n  \"秋雨敲打渡口\",\n  \"你的背影消失在尽头\",\n  \"我攥紧指节望着你走\",\n  \"哑言无声泪先流\",\n  \"[chorus]\",\n  \"(Chords: Am - G - C - F)\",\n  \"(Transition: Slight build in drum intensity; Erhu re-enters with main hook counter-melody; Electric guitar adds melodic fills)\",\n  \"(Vocal-Perf: Male, more impassioned delivery, open vowel sounds; Clear articulation; Slight natural vibrato on sustained notes; Strong emotional directness)\",\n  \"(Mix: Vocals still centered, upfront; Erhu prominent; Acoustic and electric guitars provide melodic layering; Fuller drum sound)\",\n  \"(Melody-Contour: Ascending melodic phrases, reaching a memorable peak note; Wide interval leap in the main hook; Highly singable)\",\n  \"(Melody-Rhythm: Clear downbeat landing, anthemic feel)\",\n  \"(Melody-Harmony: Strong Am pentatonic focus, reinforces emotional weight)\",\n  \"秋水向东流\",\n  \"冷月照透这渡口\",\n  \"等不来你归来的渡舟\",\n  \"只剩我守着这枯等的深秋\",\n  \"[bridge]\",\n  \"(Chords: C - G - Am - F)\",\n  \"(Transition: Dynamic build, slight increase in tempo feel; Drums become more active; Erhu plays a more complex counterpoint)\",\n  \"(Vocal-Perf: Male, urgent, slightly more agitated tone; Expressive storytelling; Sustained notes with emotional depth; Clear articulation)\",\n  \"(Mix: Vocals remain central; More active instrumentals; Electric guitar takes more melodic space; Erhu weaves around vocal)\",\n  \"(Melody-Contour: Begins in a slightly higher register, builds intensity; Melodic phrases feel more pleading; Final lines of D block have a similar peak to the chorus)\",\n  \"(Melody-Rhythm: More driving, insistent rhythm in the vocal delivery)\",\n  \"(Melody-Harmony: Shifting harmony from C to F provides dynamic tension; Ends back on Am feel)\",\n  \"还记得那晚的渡口\",\n  \"你说不走要陪我度过深秋\",\n  \"可你随那一江秋水渐渐不回头\",\n  \"爱如离岸的渡船终究不停留\",\n  \"我在秋夜里守着你留下的那只旧舟\",\n  \"等到月色也磨旧\",\n  \"[interlude]\",\n  \"(Chords: Am - G - C - F)\",\n  \"(Transition: Vocals drop out; Erhu takes lead with a full, expressive solo; Electric guitar adds harmonious fills)\",\n  \"(Sound-Design: Instrumental showcase for erhu, emotional core of the song)\",\n  \"(Melody-Contour: Highly ornamental erhu solo, showcases instrument's range and expressiveness; Lyrical and fluid)\",\n  \"(Melody-Rhythm: Free-flowing, slightly rubato in places, but overall maintains song's tempo)\",\n  \"(Melody-Harmony: Stays within Am pentatonic, explores melodic variations)\",\n  \"(Inst: Erhu main focus; Acoustic guitar strumming; Electric guitar counter-melodies; Drums maintain rhythm)\",\n  \"[chorus]\",\n  \"(Chords: Am - G - C - F)\",\n  \"(Transition: Vocals re-enter with clarity; Full band energy; Erhu melody reinforces vocal line)\",\n  \"(Vocal-Perf: Male, passionate, powerful projection; Strong resonance; Every syllable distinct; Emotional sincerity; Open vowel sounds on high notes)\",\n  \"(Mix: Full, rich sound; Vocals slightly pushed forward; Strong drum presence; Balanced instrumentation)\",\n  \"(Melody-Contour: Recapitulation of the memorable main hook; Strong ascending motion; Clear, impactful delivery)\",\n  \"(Melody-Rhythm: Solid, driving rhythm)\",\n  \"(Melody-Harmony: Strong adherence to Am pentatonic, reinforces core emotion)\",\n  \"秋水向东流\",\n  \"冷月照透这渡口\",\n  \"等不来你归来的渡舟\",\n  \"只剩我守着这枯等的深秋\",\n  \"[bridge]\",\n  \"(Chords: C - G - Am - F)\",\n  \"(Transition: Sustained energy; Slightly more urgent feel in instrumentation; Vocals convey deep longing)\",\n  \"(Vocal-Perf: Male, emotionally intense and raw; Powerful sustained notes; Heartfelt and direct; No superfluous ornamentation)\",\n  \"(Mix: Rich, full soundstage; Vocals command attention; Ethnic instruments blend seamlessly with modern elements)\",\n  \"(Melody-Contour: Builds from a slightly lower starting point to a powerful, pleading peak; Repetition of the C+D melodic themes)\",\n  \"(Melody-Rhythm: Driving, emotionally charged rhythmic delivery)\",\n  \"(Melody-Harmony: Harmonic shift from C to F creates tension and release; Strong resolution to Am feel)\",\n  \"还记得那晚的渡口\",\n  \"你说不走要陪我度过深秋\",\n  \"可你随那一江秋水渐渐不回头\",\n  \"爱如离岸的渡船终究不停留\",\n  \"我在秋夜里守着你留下的那只旧舟\",\n  \"等到月色也磨旧\",\n  \"[outro]\",\n  \"(Chords: Am - G - C - F)\",\n  \"(Transition: Gradual fade out; Erhu plays a final, mournful melodic fragment; Instruments slowly recede)\",\n  \"(Sound-Design: Lingering sense of melancholy and unresolved longing; Gentle acoustic decay)\",\n  \"(Inst: Erhu, acoustic guitar, subtle synth pad; Drums and bass fade early; Erhu continues until the very end)\",\n  \"(Melody-Contour: Descending or sustained melancholic erhu lines)\",\n  \"(Melody-Rhythm: Slowing, fading pulse)\"\n]",
  "cover_prompt": "生成一张极简主义的几何光影艺术图片作为无字音乐专辑封面。画面的核心是：一个边缘极度模糊的月形圆晕，漂浮于从深秋赭黄渐变至午夜靛蓝的水彩渐变背景中，下方隐约可见波纹状的水面倒影，整体如一幅水墨晕开的秋夜江边静物，传达孤守与思念的幽静哀愁。画面必须展现出微妙的高级材质肌理，特别是类似水彩晕染（Watercolor texture）或粗糙艺术纸张的触感。整体构图极度克制、留白（Minimalistic composition），注重光与影的柔和交错（Light and shadow interplay）。强烈要求：画面必须保持极致的安宁与静谧（Calm and serene），除了基础的、柔焦的简单几何图形（如模糊的圆、半透明的方块或柔和的线条）外，绝对不要出现任何复杂的现实物体、风景或人物！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！绝对不要生成人物轮廓。传达出一种充满诗意、呼吸感与冥想空间的视觉感受。",
  "cover": {
    "template_id": 2,
    "template_name": "几何光影艺术流",
    "scene_description": "一个边缘极度模糊的月形圆晕，漂浮于从深秋赭黄渐变至午夜靛蓝的水彩渐变背景中，下方隐约可见波纹状的水面倒影，整体如一幅水墨晕开的秋夜江边静物，传达孤守与思念的幽静哀愁"
  }
}