{
  "song_id": "02_琵琶行_20260328",
  "prompt": "Genre: Chinese-style Pop Ballad; BPM: 68; Key: G minor (pentatonic influenced); Rhythm: Alternating free-rhythm spoken passages and metered ballad sections, with subtle, flowing percussion; Instruments: Pipa (lead melodic, plucked, tremolo, expressive slides); Dizi (brief, mournful counter-melodies); Subtle modern percussion (soft kick; Vocals: Male and Female duet. Female: clear, expressive mezzo-soprano, gentle vibrato, precise diction, emotional storytelling. Male: clear tenor, poetic, narrative, with recitative spoken passages. Both prioritize clear, almost classical poetic enunciation; Mood: Melancholy and nostalgic, evoking imagery of autumn moon and flowing water, imbued with a sense of parting sorrow and tragic fate from ancient poetry; Highlight: Dramatic interplay between expressive pipa melodies and poetic, narrative vocal delivery, blending ancient-poetry recitation with modern ballad with a gentle acoustic folk touch.",
  "title": "断弦",
  "lyrics": "[intro]\n(Chords: Gm - Cm - Dm - Gm)\n(Transition: Gentle entrance of Pipa, setting a melancholic scene.)\n(Sound-Design: Sparse Pipa tremolo fading into sustained synth pad.)\n(Inst: Pipa takes center stage with a signature motif.)\n(Mix: Pipa slightly upfront, synth pad underneath, creating space.)\n\n[verse]\n(Chords: Gm - Dm - Eb - Cm - F - Bb - Gm - Dm)\n(Transition: Subtle acoustic guitar fingerpicking joins, bass enters lightly.)\n(Melodic-DNA: Descending pentatonic phrases, starting high and settling lower.)\n(Phrase-Structure: Symmetrical 4-bar phrases, with a slight pause before the last line for emphasis.)\n(Contour-&-Range: Mid-range, flowing melody, mostly within a minor pentatonic scale.)\n(Vocal-Perf: Male vocal, clear and narrative, emphasis on poetic diction, melancholic tone.)\n(Mix: Male vocal central, acoustic guitar delicate, bass supportive, Pipa offers occasional fills.)\n(Inst: Acoustic guitar provides rhythmic pulse, Pipa adds sparse, expressive counterpoint.)\n月落寒江雁影孤，霜压芦苇白如素。\n客舟系岸无归处，一盏残灯照离途。\n露湿衣襟风不住，\n暗问何人拨弦诉？\n\n[pre-chorus]\n(Chords: Eb - Bb - Cm - Gm - Dm - Gm)\n(Transition: Melody subtly lifts, percussion softly enters.)\n(Melodic-DNA: Rising melodic fragments, building anticipation, using modal shifts.)\n(Phrase-Structure: More dynamic than verse, leading directly into the chorus without a hard stop.)\n(Contour-&-Range: Begins mid-range, ascends slightly to create tension.)\n(Vocal-Perf: Female vocal enters, gentle but more emotive, slightly breathy, clear enunciation.)\n(Mix: Female vocal takes lead, percussion gentle, Pipa provides a short, quick embellishment.)\n(Inst: Pipa quickening its pace, drums establish a soft, steady beat.)\n轻移莲步隔纱幕，素手拨弦声渐出。\n幽幽一曲诉旧恨，泪痕未干已成曲。\n\n[chorus]\n(Chords: Gm - Eb - Bb - F - Gm - Cm - Dm - Gm)\n(Transition: Full instrumentation, more dynamic feel, Pipa becomes more virtuosic.)\n(Melodic-DNA: Strong, memorable pentatonic melody, featuring a characteristic ascending leap and a falling phrase, evoking the sound of the pipa.)\n(Phrase-Structure: Energetic, 2-bar repeated motifs, giving a sense of rhythmic drive.)\n(Contour-&-Range: Wider pitch range, hitting higher notes for emotional impact, descending gracefully.)\n(Vocal-Perf: Duet, strong and harmonious, clear articulation, powerful yet controlled.)\n(Mix: Vocals prominent and blended, Pipa takes a more active melodic role, drums more pronounced.)\n(Inst: Pipa playing intricate arpeggios and tremolos, drums provide a consistent, driving beat.)\n弦声如诉如泣，似春雨敲窗急，敲窗急。\n指尖流转千回，问此情归何处，归何处？\n\n[bridge]\n(Chords: Cm - Gm - Eb - Dm - Gm)\n(Transition: Tempo subtly slows, instrumentation becomes sparser, focus shifts to raw emotion.)\n(Melodic-DNA: Slower, more sustained notes, with expressive Pipa slides and bends, conveying deep sorrow.)\n(Phrase-Structure: Longer, more lyrical phrases, almost recitative-like, with Pipa responding to vocal lines.)\n(Contour-&-Range: Mostly lower-mid range, somber and introspective, with occasional Pipa accents.)\n(Vocal-Perf: Male vocal, deep and contemplative, almost spoken, conveying profound sadness, subtle vibrato.)\n(Mix: Male vocal intimate, Pipa sparse and resonant, gentle synth pads provide an atmospheric backdrop.)\n(Inst: Pipa plays mournful, sustained notes; Dizi enters with a sad counter-melody.)\n幽泉滴石声渐细，余音袅袅入夜静。\n深恨藏于无语间，万籁俱寂意难平，意难平。\n\n[interlude]\n(Chords: Gm - Cm - F - Bb)\n(Transition: Instrumental, Pipa solo with light orchestral backing. Shift to pure spoken narration.)\n(Sound-Design: Pipa solo with Dizi accompaniment, then pure narration with minimal background texture.)\n(Inst: Pipa and Dizi intertwine for a short, melancholic instrumental passage before the narration.)\n(Mix: Pipa and Dizi upfront during solo, then narration dominant with subtle ambient pads.)\n(Vocal-Perf: Male voice, clear, deep, theatrical narration, spoken with ancient-poetry cadence.)\n敛袖凝眸放拨停，整衣低首向灯冷。\n自述幼时学此艺，名列乐府声誉盛。\n韶华散尽随水逝，半世浮萍皆是命。\n\n[chorus]\n(Chords: Gm - Eb - Bb - F - Gm - Cm - Dm - Gm)\n(Transition: Re-entry of full band, strong and urgent, building on previous emotional intensity.)\n(Melodic-DNA: Same as first chorus, but with added layers and intensity, potentially a higher harmony.)\n(Phrase-Structure: Driving and impactful, with full duet harmony.)\n(Contour-&-Range: Expansive, reaching peak notes, then resolving with strong emotional release.)\n(Vocal-Perf: Duet, more powerful and harmonized than before, full chest voice for impact.)\n(Mix: Full, rich sound, vocals layered, Pipa prominent, drums driving, strings swelling.)\n(Inst: Pipa performs a more embellished version of the chorus melody, full rhythmic section.)\n弦声如诉如泣，似春雨敲窗急，敲窗急。\n指尖流转千回，问此情归何处，归何处？\n\n[outro]\n(Chords: Cm - Gm - Dm - Gm - Dm - Gm)\n(Transition: Gently fades out, Pipa leading, leaving a sense of lingering melancholy.)\n(Melodic-DNA: Slow, lingering notes from the Pipa, with a final descending vocal phrase.)\n(Phrase-Structure: Extended, drawn-out phrases, allowing space for emotional resonance.)\n(Contour-&-Range: Settles into a lower, introspective range, ending on a sustained note.)\n(Vocal-Perf: Duet, soft and melancholic, with a final quiet male spoken line.)\n(Mix: Vocals slowly fade, Pipa becomes more exposed, gentle sustain.)\n(Inst: Pipa plays a final, melancholic motif; subtle strings fade out.)\n天涯各处皆漂泊，他乡遇故知。\n泪湿青衫问苍天，弦断又逢谁？",
  "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：深邃的墨蓝与冷灰交织，中央浮现一枚模糊的圆形光晕，如秋江上的残月倒影，四周漫漶着如水墨晕染的半透明纹理，光与暗在纸面轻柔渗透，营造出孤舟夜泊、弦音凄迷的禅意意境。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(禅意孤独)",
    "scene_description": "墨蓝冷灰底色上，一枚柔焦圆月般的光晕居中漂浮，仿佛秋江水面倒映的残月；四周水墨晕染的半透明几何层叠，光影互渗，传达出夜泊孤舟、弦音断续的禅意悲寂氛围。"
  }
}