{
  "song_id": "02_紅蓮華_20260420",
  "prompt": "Genre: J-Rock / Anisong / Symphonic Rock; BPM: 135; Key: E minor; Rhythm: Driving rock beat with a strong backbeat, busy 16th-note kick patterns, and fast, tight hi-hats.; Instruments: Punchy acoustic drums; tight electric bass; layered, high-gain distorted guitars; bright acoustic piano for melody; epic orchestral strings for cinematic scope.; Vocals: Female. Powerful, clear, and emotive lead vocal with a strong chest/mix voice and soaring high notes. Passionate delivery. Harmonized backing vocals in chorus.; Mood: The final sprint in a race, muscles screaming, but a sudden surge of adrenaline pushes you past the finish line.; Production: High-fidelity modern rock. Dense, wide mix with powerful, upfront vocals. Polished and radio-ready.; Language: Japanese; Highlight: The explosive downbeat of the first chorus, where the full band crashes in and the vocal soars, releasing all pre-chorus tension.",
  "title": "刃上行",
  "lyrics": "[intro]\n(Chords: Em - D - C - G/B - Am7 - B7)\n(Vocal-Perf: Soft, breathy, almost spoken, transitioning to a full chest voice)\n(Inst: Delicate piano arpeggios, atmospheric strings swelling underneath)\n(Mix: Starts intimate and narrow, explodes into a wide stereo image with the full band entry)\n脊骨里藏着没说完的话\n带我走　往前\n\n[verse]\n(Chords: Em - C - G - D)\n(Vocal-Perf: Assertive and rhythmic chest voice, mezzo-forte dynamic)\n(Inst: Driving distorted guitars, tight bass locked with kick drum, punchy snare on 2 and 4)\n(Melody-Rhythm: Syncopated and conversational, mirroring the rhythmic pulse of the band)\n沙砾嵌进膝盖的疼不散\n肺腔里灼烧　指节攥白\n还没到能松开的那一刻\n还没有\n\n[pre-chorus]\n(Chords: Am7 - G/B - C - Dsus4 - D)\n(Vocal-Perf: Intensity builds, pitch rises, notes become more sustained and emotional)\n(Inst: Strings become prominent with a tense ostinato, drums shift to a half-time feel to build tension)\n(Structure: Clear dynamic build, a palpable climb towards the chorus)\n铁锈的气味混着汗\n咬着牙也要往前站\n被击倒才明白脚下这条路只属于自己\n只属于自己\n\n[chorus]\n(Chords: C - D - Bm7 - Em - C - D - G)\n(Vocal-Perf: Full power, soaring in a high register with controlled, wide vibrato)\n(Inst: Layered distorted guitars create a wall of sound, crashing cymbals, epic strings play counter-melodies)\n(Mix: Maximum width and energy, vocals cut through the dense arrangement with clarity and power)\n脊骨里藏着没说完的话\n带我走　往前\n这道疤是我付过的学费　也是我欠自己的勋章\n谢谢你　所有让我摔下去的重量\n世界把我压进土里我才学会怎么生长\n刃上的花　开得烈\n把黑暗也刺穿\n\n[bridge]\n(Chords: Cmaj7 - D - Bm7 - Em - Am7 - B7sus4 - B7)\n(Vocal-Perf: Starts softer and more introspective, then builds back to full power for the final line)\n(Inst: Texture thins to just piano and clean guitar arpeggios, then drums and bass re-enter with a powerful build)\n(Structure: Provides emotional and dynamic contrast, a moment of reflection before the final climax)\n有人在终点等　有人中途离散\n有人把旗帜插进别人的伤口庆欢\n而我只是一个还没倒下的人\n在风里听见自己心跳的声音\n\n[chorus]\n(Chords: C - D - Bm7 - Em - C - D - G)\n(Vocal-Perf: Maximum emotional intensity, powerful ad-libs and harmonies added)\n(Inst: All instruments at full force, lead guitar adds melodic fills between vocal phrases)\n(Mix: The loudest and widest point of the song, a massive, epic conclusion)\n这道疤是我付过的学费　也是我欠自己的勋章\n谢谢你　所有让我摔下去的重量\n世界把我压进土里我才学会怎么生长\n刃上的花　开得烈！\n把黑暗也刺穿\n\n[outro]\n(Chords: Em - D - C - G)\n(Inst: Driving guitar riff over powerful drum hits, ending on a final, sharp chord with cymbal crash)\n(Structure: High energy instrumental finish that ends abruptly)",
  "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：深焦的铁锈红与暗砖色在画面中部形成灼烧核心，向上渐渗为焦炭黑与暗钢蓝，向下晕散出龟裂感的深赭石色，整体像一块被高温炙烤过的金属表面冷却后留下的氧化层，传递出灼痛之后仍未熄灭的燃烧意志。\n\n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。\n\n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": "深焦的铁锈红与暗砖色在画面中部形成灼烧核心，向上渐渗为焦炭黑与暗钢蓝，向下晕散出龟裂感的深赭石色，整体像一块被高温炙烤过的金属表面冷却后留下的氧化层，传递出灼痛之后仍未熄灭的燃烧意志"
  }
}