{
  "song_id": "01_Starboy_20260418",
  "prompt": "Genre: Dark Pop / R&B / Synth-Funk Fusion; BPM: 93; Key: A minor; Rhythm: Heavy, driving pocket syncopation with a prominent sub-bass kick and a sharp, cracking snare, creating a lurching, confident swagger.; Instruments: Sub-bass 808-style kick, Tight cracking snare, crisp closed hi-hat, Funky filtered synth bass, Detuned vintage piano; Vocals: Male high tenor with a smooth, breathy, and confident delivery, utilizing intricate melismas and lush background vocal stacks for harmony.; Mood: Driving a matte black hypercar through a neon-lit city tunnel at 3 AM, the engine's rumble vibrating through your chest, feeling completely isolated from the world outside the tinted windows.; Highlight: The rhythmic, pitched vocal hook ('ha-ha-ha') entering in the chorus, acting as a percussive counter-melody that defines the song's cynical, catchy identity.",
  "title": "Ghost Signal",
  "lyrics": "[intro]\n(Mix: Wide stereo field; prominent, controlled sub-bass; clean, punchy mids; silky smooth high-end; vocals precisely centered and forward; light plate reverb on snare.)\n(Inst: Heavy 808-kick; sharp cracking snare; crisp closed hi-hat.)\n(Vocal-Perf: Breathy, rhythmic ad-libs with heavy reverb.)\n\n[verse]\n(Chords: Am - G - C - F)\n(Inst: Kick and snare groove continues; detuned vintage piano enters playing block chords; filtered synth bass doubles kick rhythm.)\n(Vocal-Perf: Smooth, half-spoken tenor delivery; close-mic intimacy; ends phrases with a signature 'ah' affectation.)\n(Melody-Rhythm: Syncopated phrasing, starting on the 'and' of 4; conversational rhythm with deliberate pauses.)\n(Melody-Contour: Mostly flat, stepwise motion within a narrow range; small descending leaps at phrase ends.)\nYou left the read receipt on, ah\nTyping bubble gone before the dawn, ah\nThree dots, then silence, then withdrawn, ah\nI watched it die like a dying swan, ah\nScreenshot the proof, filed it and moved, ah\nYour name's still saved but the number's removed, ah\nArchived the thread, left the grief unreviewed, ah\nSomebody else got the energy you used, ah\n\n[pre-chorus]\n(Chords: Am - G - C - F)\n(Inst: Piano becomes more prominent; subtle atmospheric synth pad swells underneath.)\n(Vocal-Perf: Builds in intensity; melody ascends slightly; more sustained notes.)\n(Sound-Design: Filter sweep riser creating tension.)\nApartment quiet, got a second phone\nNew SIM card humming, frequency unknown\nEvery notification meant for someone grown\nI stopped forwarding the signal to a dead zone\nYou called it ghosting, I call it overhead\nYou wrote the eulogy inside your head\nFlipped the whole script, put me in the red\nI already left before you left me on read\n\n[chorus]\n(Chords: Am - G - C - F)\n(Mix: Stereo image widens; vocals become a dense stack.)\n(Hook-DNA: Rhythmic vocal chant 'ha-ha-ha-ha' motif as a counter-melody; pitch anchor on the root and 5th; repeats with slight variation.)\n(Melody-Contour: Ascending leap of a P4 on the main phrase; arch-shaped melody.)\n(Melody-Rhythm: Lead vocal lands squarely on downbeats for impact; backing vocals are syncopated.)\n(Melody-Harmonic-Tension: Main vocal melody uses the ♭7 over the C major chord, creating bluesy tension that resolves downwards to the G.)\n(Vocal-Perf: Assertive, layered lead vocal; lush background vocal stacks provide harmony and the hook.)\n(Inst: Full instrumental arrangement; synth bass more aggressive.)\n(Ha-ha-ha-ha-ha-ha-ha-ha-ha-ha)\nWatch the signal fade\n(Ha-ha-ha-ha-ha-ha-ha-ha-ha-ha)\nI'm a cold transmission, unafraid\n(Ha-ha-ha-ha-ha-ha)\nWatch the signal fade\n(Ha-ha-ha-ha-ha-ha-ha-ha-ha-ha)\nI'm a cold transmission, unafraid\n\n[verse 2]\n(Chords: Am - G - C - F)\n(Inst: Arrangement strips back slightly to verse 1 level.)\n(Vocal-Perf: Delivery similar to verse 1, maintains cool, detached tone.)\n(Melody-Rhythm: Rhythmic phrasing continues, more complex syncopation.)\nYou showed up twice to the same café, ah\nOrdered my drink, tried to recreate, ah\nBarista said my tab was paid, ah\nI was two cities deep by eight, ah\nYou built a story on a hollow frame, I\nI kept the silence wearing your name, I\nNobody clocked it, nobody came\nI traded the static for a cleaner flame\n\n[pre-chorus 2]\n(Chords: Am - G - C - F)\n(Vocal-Perf: Intensity builds again, mirroring the first pre-chorus.)\n(Sound-Design: Another subtle filter sweep riser.)\nApartment quiet, got a second phone\nNew SIM card humming, frequency unknown\nEvery notification meant for someone grown\nI stopped forwarding the signal to a dead zone\nYou called it ghosting, I call it overhead\nYou wrote the eulogy inside your head\nFlipped the whole script, put me in the red\nI already left before you left me on read\n\n[chorus 2]\n(Chords: Am - G - C - F)\n(Mix: Energy matches first chorus; additional ad-libs added for variation.)\n(Hook-DNA: Rhythmic vocal chant 'ha-ha-ha-ha' motif as a counter-melody; pitch anchor on the root and 5th; repeats with slight variation.)\n(Melody-Harmonic-Tension: Main vocal melody uses the ♭7 over the C major chord, creating bluesy tension that resolves downwards to the G.)\n(Vocal-Perf: Assertive, layered lead vocal; lush background vocal stacks provide harmony and the hook.)\n(Ha-ha-ha-ha-ha-ha-ha-ha-ha-ha)\nWatch the signal fade\n(Ha-ha-ha-ha-ha-ha-ha-ha-ha-ha)\nI'm a cold transmission, unafraid\n(Ha-ha-ha-ha-ha-ha)\nWatch the signal fade\n(Ha-ha-ha-ha-ha-ha-ha-ha-ha-ha)\nI'm a cold transmission, unafraid\n\n[bridge]\n(Chords: Dm - Am - C - G)\n(Mix: Reverb becomes more spacious and noticeable.)\n(Inst: Arrangement breaks down; piano and pads are more prominent; drums simplify to just kick and snaps.)\n(Vocal-Perf: More melodic and flowing delivery; higher register used.)\n(Melody-Harmonic-Tension: Melody deliberately avoids the root, floating over the chords and creating unresolved tension by ending phrases on the 2nd over the G chord, setting up a return.)\nI kept the voicemail but deleted your face\nWrote you a letter, fed it straight to the fireplace\nMidnight, the inbox glows an amber shade\nEvery unopened thing a debt unpaid\nFrequency shifts and the old wavelength breaks\nI tune to a channel that nobody takes\nSignal so clean now it practically aches\nSome connections only hold while the circuit breaks",
  "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：深空黑色背景上，一组极细的白色和冷蓝色信号波形线条从画面左侧延伸而来，在画面中央急剧断裂成散射的碎片状线段，右侧逐渐消融为稀疏的点阵，营造出信号中断、频率消失的视觉感；断裂核心处有一个极小的、发出冷白光晕的几何原点作为锚点。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": "深空黑色背景上，一组极细的白色和冷蓝色信号波形线条从画面左侧延伸而来，在画面中央急剧断裂成散射的碎片状线段，右侧逐渐消融为稀疏的点阵，营造出信号中断、频率消失的视觉感；断裂核心处有一个极小的、发出冷白光晕的几何原点作为锚点"
  },
  "style_direction": "A",
  "style_reference": "The Weeknd, Frank Ocean, Bryson Tiller"
}