{
  "song_id": "02_给你一瓶魔法药水_20260512",
  "prompt": "Genre: Mandopop / Indie Pop Rock; BPM: 99; Key: E Major; Rhythm: Simple rock backbeat (kick 1&3, snare 2&4), steady 8th-note hi-hats, on-the-grid.; Instruments: Clean studio kit, tight snare; Round P-bass tone, melodic; Rhythm: clean, chorused; Lead: distorted, heavy reverb; Dreamy synth pads, subtle arps.; Vocals: Female and Male duet; Female: bright, airy, mid-range, minimal vibrato; Male: softer, supportive harmony, often doubling melody an octave down.; Melody: Stepwise arch, lands on tonic; conversational, upbeat pickups; Mood: Lying on the grass at night, sharing one pair of earbuds, watching for shooting stars.; Production: High-fidelity, radio-ready polish; wide stereo image; smooth bus compression, lush reverbs.; Language: Mandarin; Highlight: The wall-of-sound distorted guitar melody erupting after the second chorus, a sudden shift from vocal sweetness to instrumental power.",
  "title": "普通的一次",
  "lyrics": "[intro]\n(Hook-DNA: Syncopated 8th-note figure, starts on 'and' of 1, resolves on downbeat of 3; circles around the 3rd and 5th, consistently lands on the tonic E; motif repeats twice, third statement slightly varied with higher notes)\n(Mix: Clean, high-fidelity mix. Vocals centered and forward. Drums punchy in the center, wide stereo guitars panned L/R. Bass locked mono center. Lush hall reverb on lead guitar and vocals, shorter plate on snare. Smooth bus compression.)\n(Inst: Clean electric guitar with chorus effect plays main riff. Followed by full band entry: tight kick/snare, round bass, strummed acoustic low in mix.)\n(Chords: E - A - E - A)\n\n[verse]\n(Transition: Clean guitar riff continues, hi-hats enter.)\n(Melody-Contour: Narrow range, stepwise motion; phrases land on tonic/3rd; conversational, on-the-beat.)\n(Inst: Instrumentation sparsens. Bass plays simple root notes. Light acoustic strumming. Drums maintain steady backbeat.)\n(Vocal-Perf: Female lead: soft, airy chest voice, minimal dynamics. Male lead enters on second half: gentle, breathy tone, supporting.)\n(Chords: E - A - C#m - B - A)\n夏末的夜空低得像一张棉\n流星划过去没来得及许愿\n草地上还留着白天晒过的暖\n你把左边的耳机塞进我耳沿\n两首歌的时间 星星数了一半\n你说你累了 侧过来靠着肩\n\n[chorus]\n(Transition: Drum fill with cymbal crash pushes energy up.)\n(Melody-Contour: Ascending arch, peaks mid-phrase; stepwise descent; sustained notes on phrase ends.)\n(Melody-Harmonic-Tension: Melody holds the 2nd (F#) over the E major tonic chord in the first bar, creating a gentle suspension before resolving down to the root.)\n(Hook-Recall: The vocal melody's rhythm on the hook line subtly mirrors the intro guitar riff's syncopation.)\n(Inst: Full band energy. Distorted lead guitar enters with subtle, ambient swells. More active bassline.)\n(Vocal-Perf: Duet vocals, more open and projected (mezzo-forte). Harmonies are tight, often in thirds.)\n(Mix: Stereo field widens with added guitar layers. Vocal reverb becomes more prominent.)\n(Chords: A - E - C#m - B)\n那个位置还空着\n你的耳机线还绕在这里\n我们谁都不知道\n那夜装在普通里\n最后一次总是打扮成普通的一次\n\n[interlude]\n(Transition: Final vocal line's reverb tail blends into the start of the guitar solo.)\n(Melody-Contour: Instrumental melody; Soaring, long sustained notes; lyrical phrasing.)\n(Inst: Lead guitar takes focus: heavy distortion, long delay, and cavernous reverb. Rhythm section provides a driving foundation.)\n(Mix: Lead guitar is front and center. Drums feel more compressed and powerful.)\n(Chords: A - E - C#m - B - A - E - C#m - B)\n\n[verse]\n(Transition: Guitar solo feedback fades, leaving clean guitar riff to re-establish the verse feel.)\n(Melody-Contour: Narrow range, stepwise motion; phrases land on tonic/3rd; conversational, on-the-beat.)\n(Inst: Instrumentation drops back to verse 1 level. Bass plays simple root notes. Clean guitar and drums.)\n(Vocal-Perf: Female lead: soft, airy chest voice. Male joins for harmony on the last line.)\n(Chords: E - A - C#m - B - A)\n你说下周再来数同一片天\n那句话轻得像耳机线一样淡\n草叶尖压着露水慢慢填满\n你站起来拍了拍袖口的尘间\n我还记得你转身时头顶的满\n那个夜晚的名字叫做 平凡\n\n[chorus]\n(Transition: Sustained vocal note from verse builds directly into the downbeat of the chorus.)\n(Melody-Contour: Ascending arch, peaks mid-phrase; stepwise descent; sustained notes on phrase ends.)\n(Melody-Harmonic-Tension: Melody holds the 2nd (F#) over the E major tonic chord in the first bar, creating a gentle suspension before resolving down to the root.)\n(Hook-Recall: The vocal melody's rhythm on the hook line subtly mirrors the intro guitar riff's syncopation.)\n(Inst: Full energy. Driving rhythm section. Layered clean and distorted guitars create a dense harmonic texture.)\n(Vocal-Perf: Duet vocals at maximum intensity for the song. Strong projection, tight harmonies throughout.)\n(Mix: Widest stereo image. Parallel compression on drums for more punch.)\n(Chords: A - E - C#m - B)\n那个位置还空着\n你的耳机线还绕在这里\n我们谁都不知道\n那夜装在普通里\n最后一次总是打扮成普通的一次\n那个草地还绿着\n那年夏天还亮在记忆里\n我们都不知道\n告别藏在笑里\n最后一次总是打扮成普通的一次\n\n[bridge]\n(Transition: Final chord of chorus rings out, energy drops slightly with a new syncopated bass/drum pattern.)\n(Melody-Contour: Repetitive rhythmic motif; stepwise motion around 5th; phrases feel like questions.)\n(Melody-Harmonic-Tension: Melody phrase ends on the major 7th (D#) over the tonic E chord, holding the tension without immediate resolution, creating a feeling of sweet anticipation.)\n(Inst: Instrumentation breaks down. Bass becomes more melodic and prominent. Guitars play arpeggiated figures. Drums simplify.)\n(Vocal-Perf: More intimate duet. Call and response structure. Final lines sung with more breath and a slight delay effect.)\n(Mix: Mix narrows, focus on vocals and bass. Automated delay throws on specific words.)\n(Chords: C#m - B - A - E)\n最后一次总是打扮成普通的一次\n它不响 不亮 不说自己是最后一次\n所有的郑重都穿着随便的样子\n直到你走远了 才发现它是\n\n[outro]\n(Transition: Bridge vocals fade into a sustained guitar chord.)\n(Melody-Contour: Ad-lib vocal melody; descending line; free rhythm.)\n(Inst: Band plays final chorus progression instrumentally. Lead guitar plays a final melodic statement with heavy reverb.)\n(Vocal-Perf: Final line sung softly, with noticeable breath.)\n(Mix: Instruments begin to fade out, leaving only the reverb tail of the lead guitar and vocal.)\n(Chords: A - E - C#m - B)\n夏末的夜空低得像一张棉\n流星划过去没来得及许愿\n草地上还留着白天晒过的暖\n你把左边的耳机塞进我耳沿",
  "cover_prompt": "生成一张无字音乐专辑封面。风格严格参照 20 世纪 Color Field Painting（色域绘画），如 Mark Rothko 晚期作品的色层叠压逻辑与 Helen Frankenthaler 的浸染法（soak-stain technique）。画面的核心色彩与情绪：深夏将尽的闷热蓝黑色天幕从上方压下，中层是一道极细的暗金黄——那是草地被夜色浸透前最后一点体温的痕迹，底部渗出隐约的灰绿，整体像一个人在黑暗中安静呼吸却不知道这是最后一次呼吸。技法要求：色彩之间的过渡必须模拟颜料在未上浆的粗纹棉布（raw cotton canvas）上自然渗透、晕开的效果，边界柔软但保留颜料浓度不均匀造成的自然深浅变化（pigment pooling）。画面需要呈现真实画布的编织肌理（woven canvas texture），局部可见稀薄处透出的底布纹路。整体色调偏低饱和、微微发灰（muted, desaturated palette），避免荧光感和数字渐变的均匀平滑。绝对禁止：任何文字/字母/拼音、人物或人物轮廓、具象物体、几何图案、锐利边缘、胶片颗粒滤镜、3D渲染质感。",
  "cover": {
    "template_id": 1,
    "template_name": "环境光晕流",
    "scene_description": "深夏将尽的闷热蓝黑色天幕从上方压下，中层是一道极细的暗金黄——那是草地被夜色浸透前最后一点体温的痕迹，底部渗出隐约的灰绿，整体像一个人在黑暗中安静呼吸却不知道这是最后一次呼吸"
  }
}