{
  "song_id": "02_Unknown_20260326",
  "prompt": "Genre: J-Rock / Electropop / Chiptune; BPM: 168; Key: C minor; Rhythm: Driving rock beat with punchy kick on 1 & 3, sharp snare on 2 & 4. Constant 16th-note hi-hats and a driving root-note synth bass create a frantic, high-energy feel.; Instruments: Punchy processed drum kit, driving synth bass, distorted rhythm guitar (power chords), layered synths including a main chiptune-style square wave arpeggio hook and background saw-wave pads.; Vocals: Female, powerful and clear mid-to-high range vocals with a bright timbre. Moderate reverb and delay. Energetic delivery.; Mood: Energetic, frantic, driving, anthemic, nostalgic, like an anime opening theme.; Production: Dense, loud, polished mix. Vocals and lead synth arpeggio are upfront. Wide stereo field. Heavy compression for sustained energy.; Structure: Intro, Verse, Chorus, Interlude, Bridge, Chorus, Outro; Language: English; Highlight: The relentless 16th-note chiptune-style synth arpeggio hook.",
  "title": "Chase The Sky",
  "lyrics": "[intro]\n(Chords: Cm - Cm - Cm - Cm)\n(Inst: Filtered synth arpeggio enters, fast 16th notes. Hook DNA established.)\n(Mix: Narrow field, opens up with filter sweep.)\n(Sound-Design: 8-bit chiptune square wave synth.)\n(Vocal-Perf: No vocals.)\n\n(Transition: Reverse cymbal swell and drum fill into full band.)\n[verse]\n(Chords: Cm - G - Ab - Eb)\n(Inst: Full band enters. Drums drive with 16th-note hi-hats. Bass plays root notes. Rhythm guitar holds power chords.)\n(Vocal-Perf: Energetic and punchy chest voice, mezzo-forte.)\n(Melody-Rhythm: On-the-beat, declamatory.)\nChase the sky\nWe were built to burn and never die\nFeel the heat\nThunder crashing underneath our feet\n\n(Transition: Short drum fill with cymbal crash.)\n[chorus]\n(Chords: Cm - G - Ab - Eb)\n(Inst: Energy lifts. Synth arpeggio is loud and upfront. Guitars are layered and wider.)\n(Vocal-Perf: Higher register, full forte, layered harmonies on 'oh'.)\n(Melody-Contour: Ascending line for emotional lift.)\n(Mix: Vocals centered and powerful. Wide stereo synth layers.)\nWe ignite\nBlazing through the darkness, we break the night\nRise and burn\nThis is our flame and it will never turn\n\n(Transition: Guitar feedback fades into a held synth note.)\n[interlude]\n(Chords: Cm - G - Ab - Eb)\n(Inst: Instrumental section. A short, melodic distorted guitar solo plays over the main chord progression, trading phrases with the synth arpeggio.)\n(Vocal-Perf: No vocals.)\n(Mix: Guitar solo is front and center, slightly panned.)\n\n(Transition: Tempo and instrumentation drop out, leaving a ringing synth pad.)\n[bridge]\n(Chords: Fm - Cm - G - Cm)\n(Inst: Atmosphere shifts. Drums play a half-time beat. Clean, arpeggiated guitar melody enters. Bass is more melodic.)\n(Vocal-Perf: Softer, more breathy delivery, questioning tone.)\n(Melody-Harmony: More sustained notes, creating tension.)\nWhen the shadows close around\nDo you hear the rising, pounding sound\nHold the spark\nLet it blaze and burn away the dark\n\n(Transition: Big snare roll and crescendo builds back to full tempo.)\n[chorus]\n(Chords: Cm - G - Ab - Eb)\n(Inst: Highest energy section. Drums are powerful with frequent cymbal crashes. Double-time feel implied.)\n(Vocal-Perf: Maximum intensity, ad-libs and harmonies layered heavily.)\n(Mix: Everything is loud and compressed, creating a 'wall of sound' effect.)\n(Structure: Final climax.)\nWe ignite\nBlazing through the darkness, we break the night\nRise and burn\nThis is our flame and it will never turn\n\n(Transition: Final chord hits and sustains with feedback.)\n[outro]\n(Chords: Cm)\n(Inst: The main synth arpeggio plays alone, a low-pass filter slowly closes over it, mimicking the intro.)\n(Sound-Design: Filter sweep muffles the sound until it disappears into a final reverb tail.)\n(Vocal-Perf: No vocals.)",
  "cover_prompt": "生成一张现代平面设计（Modern graphic design）风格的几何艺术图片作为无字音乐专辑封面。画面的核心是：高对比度霓虹蓝与洋红色锐角三角形、菱形组成的放射状爆炸矩阵，以画面正中为原点向四周高速扩张，密集的折线网格与平行斜线层层交错，营造出电子音乐节奏感十足的视觉隧道，整体背景深黑，色块边缘锐利干净，传递出8-bit像素爆裂与J-Rock热血的碰撞感。采用纯粹的数字矢量图形（Vector art）媒介，质感极致平滑干净（Smooth and clean textures），绝对没有任何画笔笔触、水彩晕染或写实肌理。通过线条的排列、交错和高对比度色彩，创造出类似欧普艺术（Op Art）的视觉错觉，赋予画面极强的视觉动感（Sense of movement）和空间纵深感（Depth）。强烈要求：这是一张纯数字生成的抽象几何图形作品，绝对不要出现任何具象的自然风光、人物、动物或实体物品！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！传达出精准、充满秩序感且极具律动（Groove）的现代视觉效果。",
  "cover": {
    "template_id": 4,
    "template_name": "动态矢量几何流",
    "scene_description": "高对比度霓虹蓝与洋红色锐角三角形、菱形组成的放射状爆炸矩阵，以画面正中为原点向四周高速扩张，密集的折线网格与平行斜线层层交错，营造出电子音乐节奏感十足的视觉隧道，整体背景深黑，色块边缘锐利干净，传递出8-bit像素爆裂与J-Rock热血的碰撞感"
  }
}