{
  "song_id": "01_Ohio_20260412",
  "prompt": "Genre: Dream Pop / Indie Rock; BPM: 72; Key: E Major; Rhythm: Steady, spacious backbeat (kick 1&3, snare 2&4), eighth-note hats. Bass follows kick. Clean guitars play shimmering arpeggios creating an atmospheric pulse.; Instruments: Clean single-coil, bright reverb, finger-picked; Clean single-coil, melodic lines, tape delay; P-bass; Vocals: Male, breathy and gentle tenor, intimate close-mic feel with a distinctive non-native English accent adding character, occasional falsetto leaps.; Mood: The specific quiet of a late-night train ride, watching city lights blur through a rain-streaked window, headphones on.; Highlight: The gentle, almost sigh-like lift into falsetto on the repeated 'oh hi' motif in the chorus, where the simple phrase carries an unexpected weight of longing against the shimmering guitars.",
  "title": "Spare Key",
  "lyrics": "[intro]\n(Mix: Wide stereo field. Lush plate reverb on guitars creates deep space. Drums sit naturally in the room, not overly compressed. Bass is round and defined. Vocals sit dry and centered in the final mix. High-Fidelity, Pristine Radio-Ready Mix with expensive analogue warmth and silky smooth high-end.)\n(Inst: Clean electric guitar 1 plays shimmering, arpeggiated chords. Guitar 2 enters with a simple, sparse counter-melody. Bass holds root notes. Drums enter with a simple backbeat.)\n(Chords: Emaj7 - C#m7 - A - Emaj7)\n\n[verse]\n(Inst: Instrumentation remains sparse. Bass walks between root notes. Guitars continue clean arpeggios, creating a bed of sound.)\n(Vocal-Perf: Soft, breathy, almost-spoken delivery. Low in the dynamic range, intimate and close-mic'd.)\n(Chords: Emaj7 - C#m7 - A - Emaj7)\n(Melody-Contour: Narrow melodic range, mostly stepwise motion hovering around the 3rd of each chord. Phrases end on a downward drift.)\n(Melody-Rhythm: Phrasing is relaxed, starting just after beat 1, with long pauses between lines creating space.)\nYour jacket still hangs\nbehind my bedroom door\nI haven't touched it\nsince the day you left\n\n[chorus]\n(Mix: Vocals gain a touch of reverb, blending more into the space. Stereo image widens slightly.)\n(Inst: Full band enters with more presence. Layered clean guitars create a richer texture.)\n(Vocal-Perf: Shifts from breathy verse to a clearer, more melodic head voice and falsetto. A clear lift in dynamic energy. Lush background vocal stacks enter subtly.)\n(Chords: E - C#m - A - B)\n(Hook-DNA: Rhythmic pattern is two eighth-notes on beat 1&, repeated on 3&; Pitch anchor is a signature ascending minor 6th leap from B to G#; Repetition follows an A-A-B structure.)\n(Melody-Contour: Signature ascending m6 leap on the hook, creating an arch shape for each phrase.)\n(Melody-Rhythm: Vocal lands squarely on the downbeats, providing a strong rhythmic anchor.)\n(Melody-Harmonic-Tension: The leap to the major 3rd (G#) over the E chord creates a feeling of hopeful release; the final phrase descends, creating tension by landing on the 2nd over the B chord before resolving.)\nI keep the spare key\nunder the welcome mat\nsome foolish ritual\nlike you'd ever come back\nlike the hollow sound\nof knocking on a wall\nstay or go\nI'd answer either way\nstay or go\nI'd answer either way\n\n[verse]\n(Inst: Returns to the sparse arrangement of the first verse.)\n(Vocal-Perf: Returns to the softer, narrative delivery, but with a slight increase in tonal desperation.)\n(Chords: Emaj7 - C#m7 - A - Emaj7)\nI bought the same bread\nyou used to eat each morning\nit's going soft now\nsitting on the shelf\n\n[chorus]\n(Mix: Drums have slightly more parallel compression for impact. Vocals pushed forward.)\n(Inst: Lead guitar adds subtle melodic fills between vocal phrases, echoing the main melody.)\n(Vocal-Perf: Higher intensity than first chorus. Ad-libs and harmonies are more prominent in the mix.)\n(Chords: E - C#m - A - B)\nI keep the spare key\nunder the welcome mat\nsome foolish ritual\nlike you'd ever come back\nlike the hollow sound\nof knocking on a wall\nstay or go\nI'd answer either way\nstay or go\nI'd answer either way\n\n[bridge]\n(Inst: Guitars simplify to sustained, washed-out chords. Bass becomes more melodic. Drums drop down to just kick and hi-hat, building tension.)\n(Vocal-Perf: Becomes more pleading and direct, pushing the upper chest voice before a final falsetto release.)\n(Chords: C#m - A - E - B)\n(Melody-Harmonic-Tension: Melody deliberately hangs on the 4th over the tonic (E) chord for a full bar, creating a powerful suspension that only resolves on the final phrase over the V (B) chord.)\nThe voicemail I saved\nis thirty seconds long\nyour voice sounds so careful\nlike you already knew\n\n[interlude]\n(Inst: Lead guitar plays a melodic, lyrical solo. Saturated in tape delay and reverb. Not virtuosic, but thematic and atmospheric. Rhythm section provides a solid, driving foundation.)\n(Mix: Solo is placed front and center, with a long delay tail filling the stereo field.)\n(Chords: E - C#m - A - B)\n\n[outro]\n(Inst: All instruments begin a slow fade. The shimmering reverb tail of the guitars is the last element to disappear.)\n(Vocal-Perf: The 'oh hi oh hi' motif is repeated with layered, fading vocal harmonies, becoming a distant echo.)\n(Chords: E - C#m - A - B)\nstay or go\nI'd answer either way\nstay or go\nI'd answer either way\n",
  "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：一枚形态模糊、边缘柔和的钥匙轮廓，悬浮于从深灰蓝到浅雾白的水彩渐变背景中，周围环绕着稀薄的、半透明的光晕，仿佛某件被长久搁置的物件在记忆中缓缓褪色。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": "一枚形态模糊、边缘柔和的钥匙轮廓，悬浮于从深灰蓝到浅雾白的水彩渐变背景中，周围环绕着稀薄的、半透明的光晕，仿佛某件被长久搁置的物件在记忆中缓缓褪色"
  },
  "style_direction": "B",
  "style_reference": "Billie Eilish, Lorde"
}