{
  "song_id": "04_Summertime Sadness_20260418",
  "prompt": "Genre: Cinematic Pop / Chamber Pop; BPM: 112; Key: F# minor; Rhythm: Mid-tempo programmed trip-hop groove with a heavy, round kick on 1 & 3 and a sharp, reverberant snare on 2 & 4.; Instruments: Distant grand piano chords; Orchestral string section; Deep, round synth bass; Programmed drums; Bell-like synth arpeggio; Vocals: Female, with a smoky, low-range alto in verses shifting to an airy, soaring, high-register head voice in the chorus, featuring lush background vocal stacks.; Mood: The feeling of driving fast down a coastal highway at dusk, windows down, knowing this perfect moment is about to end.; Highlight: The downbeat of the first chorus, where a massive wall of lush string orchestra and stacked vocal harmonies enters simultaneously, creating an explosive emotional bloom from the sparser pre-chorus.",
  "title": "Paper Meridian",
  "lyrics": "[intro]\n(Mix: High-Fidelity, Pristine Radio-Ready Mix with expensive analogue warmth and silky smooth high-end. Wide stereo image with deep sub-bass. Vocals sit in a large, cavernous reverb. Sidechain compression on pads from kick.)\n(Inst: Distant reverberant piano; Bell-like synth arpeggio; Swelling orchestral strings.)\n(Chords: F#m - D - A - E)\n\n[verse]\n(Melody-Contour: Low, mostly stepwise motion with a slight descending shape, staying within a narrow range.)\n(Melody-Rhythm: Phrasing is relaxed, often starting on beat 2, feeling slightly behind the beat.)\n(Vocal-Perf: Intimate, breathy, low-alto delivery with hints of vocal fry.)\n(Inst: Programmed drums enter with heavy kick and sharp snare. Round synth bass holds root notes. Piano and strings continue.)\n(Chords: F#m - D - A - E)\nFound your jacket on the chair\nSmells like cedar, faded wear\nThe thermostat still set to yours\nSixty-eight degrees, no more\nI made two cups by accident\nWatched the second one go cold and spent\nMy morning counting ceiling tiles\nSix by eight, and all the while\n\n[pre-chorus]\n(Melody-Contour: Ascending line, building tension by climbing stepwise towards the chorus.)\n(Vocal-Perf: Intensity increases, moving from breathy tone to a more supported, urgent sound.)\n(Inst: Strings swell in volume and complexity, adding layers. Rhythmic pulse quickens.)\n(Chords: Bm - F#m - A - E)\nAnd I know the door won't open now\nI know the weight of what I vowed\nThe kettle screams, it pulls me back somehow\nBut you're not here to hear it anyhow\n\n[chorus]\n(Hook-DNA: Core motif is the soaring leap up on \"Kiss me\" followed by a descending line; secondary hook is the rhythmic chant of \"summertime, summertime sadness\" anchoring on the root note.)\n(Melody-Harmonic-Tension: The high, airy lead vocal hangs on the 3rd and 5th over the lush string pads, creating a sense of epic, suspended emotion that resolves on the final phrase of the progression.)\n(Vocal-Perf: Jumps to a desperate, high-register head voice. Lush background vocal stacks enter, creating a massive wall of sound.)\n(Inst: Full ensemble at maximum energy. Pounding drums, soaring strings, driving piano and bass.)\n(Mix: Widest and loudest point. Parallel compression on drums for extra punch. Vocals fully saturated in reverb.)\n(Chords: F#m - D - A - E)\nLeave your ghost in every room\nEvery corner, every hollow, every wound\nI'm a paper meridian\nDrawn across a map that ends in you\nLeave your ghost, let it bloom\nPaper, paper meridian\nI keep drawing lines that lead to you\n\n[verse]\n(Vocal-Perf: Returns to the lower, intimate tone, but with a slight echo of the chorus's intensity.)\n(Inst: Arrangement pulls back, but strings maintain a slightly more prominent role than in the first verse.)\n(Chords: F#m - D - A - E)\nYour handwriting on an old receipt\nTucked inside a book I'll never read\nThe crease exactly where your thumb would land\nStill warm somehow, still secondhand\n\n[chorus]\n(Hook-DNA: Core motif is the soaring leap up on \"Kiss me\" followed by a descending line; secondary hook is the rhythmic chant of \"summertime, summertime sadness\" anchoring on the root note.)\n(Melody-Harmonic-Tension: The high, airy lead vocal hangs on the 3rd and 5th over the lush string pads, creating a sense of epic, suspended emotion that resolves on the final phrase of the progression.)\n(Vocal-Perf: Full power, high-register delivery. Additional ad-libs and harmony layers are added for heightened emotion.)\n(Inst: Maximum energy. Strings possibly add a counter-melody.)\n(Mix: Even wider, more saturated. A feeling of barely contained emotional overflow.)\n(Chords: F#m - D - A - E)\nLeave your ghost in every room\nEvery corner, every hollow, every wound\nI'm a paper meridian\nDrawn across a map that ends in you\nLeave your ghost, let it bloom\nPaper, paper meridian\nI keep drawing lines that lead to you\n\n[bridge]\n(Melody-Contour: More contemplative, with longer held notes and a gentle arch shape.)\n(Melody-Harmonic-Tension: Melody creates tension by holding the 2nd over the VI chord (D), creating a yearning, unresolved feeling that differs from the chorus's epic drama. It's a moment of quiet reflection before the final push.)\n(Vocal-Perf: Pulls back to a softer, more melancholic tone. Less breathy, more pure.)\n(Inst: Drums drop out or simplify to just a kick pulse. Piano and strings become the focus.)\n(Chords: D - A - E - F#m)\nMaybe distance is a kindness dressed in grey\nMaybe I'm the one who chose to stay\nBut the thermostat still reads sixty-eight\nAnd I can't bring myself to change it yet\n\n[outro]\n(Vocal-Perf: Fades out, repeating the main hook with heavy delay and reverb tails, becoming a disembodied echo.)\n(Inst: Instruments slowly fade, leaving only the reverberant piano and a final, long string chord.)\n(Chords: F#m - D - A - E)\nLeave your ghost in every room\nPaper, paper meridian\nI keep drawing lines that lead to you",
  "cover_prompt": "生成一张极简主义的几何光影艺术图片作为无字音乐专辑封面。画面的核心是：一张旧地图的局部，上面用褪色的墨水线条勾勒出一条柔和、模糊的经线，线条末端逐渐消散在浅灰蓝色的水彩晕染背景中，整体色调是冷静而悲悯的蓝灰与泛黄米白的交叠，经线在画面中央轻轻弯曲，像一根细小的伤痕。画面必须展现出微妙的高级材质肌理，特别是类似水彩晕染（Watercolor texture）或粗糙艺术纸张的触感。整体构图极度克制、留白（Minimalistic composition），注重光与影的柔和交错（Light and shadow interplay）。强烈要求：画面必须保持极致的安宁与静谧（Calm and serene），除了基础的、柔焦的简单几何图形（如模糊的圆、半透明的方块或柔和的线条）外，绝对不要出现任何复杂的现实物体、风景或人物！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！绝对不要生成人物轮廓。传达出一种充满诗意、呼吸感与冥想空间的视觉感受。",
  "cover": {
    "template_id": 2,
    "template_name": "几何光影艺术流",
    "scene_description": "一张旧地图的局部，上面用褪色的墨水线条勾勒出一条柔和、模糊的经线，线条末端逐渐消散在浅灰蓝色的水彩晕染背景中，整体色调是冷静而悲悯的蓝灰与泛黄米白的交叠，经线在画面中央轻轻弯曲，像一根细小的伤痕"
  },
  "style_direction": "B",
  "style_reference": "Billie Eilish, Lorde"
}