{
  "song_id": "01_Espresso_20260512",
  "prompt": "Genre: Nu-Disco Pop; BPM: 104; Key: A major; Rhythm: Tight, pocketed funk groove driven by a syncopated, melodic bassline and a steady kick, with a persistent 16th-note shaker providing momentum.; Instruments: DI electric bass, round tone, slight fret noise; Tight kick drum, snappy snare, crisp 16th-note shaker; Muted electric guitar stabs; Vocals: Female, breathy and light with a confident, slightly nasal timbre. Mix of spoken-sung verses and effortless melodic hooks, featuring lush background vocal stacks.; Mood: Walking through a sun-drenched hotel lobby in sunglasses, leaving a trail of expensive perfume, not looking back.; Production: High-Fidelity, Pristine Radio-Ready Mix with expensive analogue warmth and silky smooth high-end. Heavy glue compression, centered mono low-end, wide stereo textures.; Highlight: The split-second pause and timbral shift on the final word of the main hook, where the instrumental thins to emphasize the breathy, confident vocal delivery.",
  "title": "Voltage",
  "lyrics": "[intro]\n(Hook-DNA: Rhythmic motif is two eighths + quarter on beat 1, anchors on the 5th; Motif repeats twice, third statement resolves down to root on final word.)\n(Vocal-Perf: Breathy, close-mic, intimate and conversational.)\n(Inst: Muted synth chords, atmospheric pad, single guitar harmonic.)\n(Mix: High-Fidelity, pristine mix. Punchy, centered low-end (kick/bass). Wide stereo image from guitars, BVs, and effects. Vocals upfront with light saturation and short, clean reverb. Overall heavy but transparent compression.)\nEvery room I walk into tips its axis, oh\nCall it physics, call it magic\n\n[verse]\n(Melody-Contour: Mostly flat, conversational contour with small, stepwise movements.)\n(Melody-Rhythm: Rhythmic, syncopated phrasing that starts on upbeats, weaving around the bassline.)\n(Vocal-Perf: Spoken-sung delivery with a nonchalant, slightly teasing tone.)\n(Inst: Driving DI electric bass enters as primary melodic element, tight kick and 16th-note shaker lock in the groove, muted funky guitar stabs on right channel.)\n(Chords: Bm7 - E7 - AΔ7 - DΔ7)\nI walked in wearing Tuesday like a statement\nNo heels, no plan, just pure displacement\nThe air pressure changed\nAnd everyone felt it\nThey always do\nGravity, I dealt it\n\n[pre-chorus]\n(Melody-Contour: Stepwise ascending line building tension into the chorus.)\n(Vocal-Perf: Becomes more melodic, with crisp rhythmic ad-libs providing call-and-response.)\n(Inst: Bassline becomes more rhythmically active, subtle synth pads swell.)\n(Chords: F#m7 - Bm7 - E7 - AΔ7)\nThey memorize the way my collar sits (uh-huh)\nThe room adjusts its temperature a bit (uh-huh)\nThe bartender forgets what he was mixing (Yes)\nI did not ask for that, just an addition (Yes)\nMy posture does the work, it needs no fixing (Yes)\nThis current runs through copper, gold, and linen (Yes)\n\n[chorus]\n(Hook-DNA: Rhythmic motif: two eighths + quarter (\"thinkin' 'bout me\"), anchors on the 5th; Motif repeats, then resolves down to root on hook's final word.)\n(Melody-Contour: Arch shape, signature leap is ascending P4 from 5 to root, creating an effortless lift.)\n(Melody-Rhythm: Memorable, simple rhythm landing squarely on downbeats for maximum impact.)\n(Melody-Harmonic-Tension: Lead vocal holds the major 7th over the tonic chord (AΔ7) for a full beat before resolving, creating a dreamy, lingering feeling.)\n(Vocal-Perf: Lead vocal is light and airy, supported by lush background vocal stacks that create a rich harmonic bed.)\n(Mix: Widest stereo point. BVs panned hard left/right. Drums hit harder with parallel compression.)\n(Inst: Full ensemble. Bass, drums, guitar, and pads at peak energy.)\n(Chords: Bm7 - E7 - AΔ7 - DΔ7)\nEvery room I walk into tips its axis, oh\nCall it physics, call it magic\nFeel the pull and let it happen, baby, I know\nThat's that voltage\nHeads turn left, turn right, oh\nLike I flipped a switch tonight, oh\nFeel the pull and let it happen, baby, I know\nThat's that voltage\n\n[verse]\n(Vocal-Perf: Returns to the playful, spoken-sung delivery, with subtle melodic variations from the first verse.)\n(Inst: Arrangement drops back to the core bass/drum/guitar groove.)\n(Chords: Bm7 - E7 - AΔ7 - DΔ7)\nI did not rehearse this kind of radiance\nIt grew between my ribs like something patient\nAnd now it hums at a frequency\nThat bends the whole room toward me, apparently\n\n[bridge]\n(Melody-Harmonic-Tension: Melody deliberately avoids the root, ending each phrase on the 2nd over the tonic chord to create a feeling of suspension that pulls strongly towards the final chorus resolution.)\n(Vocal-Perf: Builds in intensity, call-and-response with ad-libs becomes more prominent.)\n(Mix: A subtle high-pass filter might engage on the instruments to build tension.)\n(Inst: Bassline plays a more complex variation to signal a shift.)\n(Chords: F#m7 - Bm7 - E7 - AΔ7)\nThey memorize the way my collar sits (uh-huh)\nThe room adjusts its temperature a bit (uh-huh)\nThe bartender forgets what he was mixing (Yes)\nI did not ask for that, just an addition (Yes)\nMy posture does the work, it needs no fixing (Yes)\nThis current runs through copper, gold, and linen (Yes)\n\n[chorus]\n(Hook-DNA: Rhythmic motif: two eighths + quarter (\"thinkin' 'bout me\"), anchors on the 5th; Motif repeats, then resolves down to root on hook's final word.)\n(Melody-Contour: Arch shape, signature leap is ascending P4 from 5 to root.)\n(Melody-Rhythm: Memorable, simple rhythm landing squarely on downbeats.)\n(Melody-Harmonic-Tension: Lead vocal holds the major 7th over the tonic chord (AΔ7) for a full beat before resolving.)\n(Vocal-Perf: Maximum energy, with more prominent ad-libs and vocal runs weaving through the main melody.)\n(Mix: The most layered and energetic section of the song.)\n(Inst: Full ensemble with additional subtle synth arpeggios.)\n(Chords: Bm7 - E7 - AΔ7 - DΔ7)\nEvery room I walk into tips its axis, oh\nCall it physics, call it magic\nFeel the pull and let it happen, baby, I know\nThat's that voltage\nHeads turn left, turn right, oh\nLike I flipped a switch tonight, oh\nFeel the pull and let it happen, baby, I know\nThat's that voltage\n\n[outro]\n(Vocal-Perf: Fades to a single breathy, spoken line with heavy reverb.)\n(Inst: Instruments drop out one by one, leaving only the bassline and shaker, which then fade.)\n(Sound-Design: A final vocal chop with a long delay tail ends the track.)\nCall it physics, call it magic\nMmm, that's that voltage\n",
  "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：炽热的琥珀金与铜橙从画面中心向外扩散，边缘过渡至深沉的酒红与暗紫，仿佛一股不可见的电流在织物深处缓慢燃烧，散发出灼热而自持的能量感。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": "炽热的琥珀金与铜橙从画面中心向外扩散，边缘过渡至深沉的酒红与暗紫，仿佛一股不可见的电流在织物深处缓慢燃烧，散发出灼热而自持的能量感。"
  },
  "style_direction": "A",
  "style_reference": "Dua Lipa, Rihanna, Sabrina Carpenter"
}