```json
{
  "song_id": "02_Shape of You_20260411",
  "prompt": "Genre: Tropical House-infused Pop with Dancehall rhythm; BPM: 96; Key: C# Minor; Rhythm: A syncopated, dembow-lite groove with a driving pocket syncopation, emphasizing off-beats in the main melodic riff; Instruments: Close-mic'd marimba, percussive acoustic guitar, round sub-bass, layered electronic percussion, subtle clean electric guitar, warm synth pads; Vocals: Male lead with a rhythmic, conversational delivery and smooth, controlled chest voice, supported by lush background vocal stacks; Mood: Upbeat, flirtatious, confident, and casually romantic with a sunny, danceable vibe; Production: High-Fidelity, Pristine Radio-Ready Mix with expensive analogue warmth and silky smooth high-end. Vocals are upfront and centered, widening in the chorus with layered harmonies and pads.; Structure: Intro, Verse, Pre-Chorus, Chorus, Verse, Pre-Chorus, Chorus, Bridge; Language: English; Highlight: A brain-scratching melodic hook played on a marimba that defines the entire track.",
  "title": "Catch Your Frequency",
  "lyrics": "[intro]\n(Mix: High-Fidelity, Pristine Radio-Ready Mix. Prominent sub-bass, clean mids, silky smooth high-end. Main riff is dry and centered, with subtle room reverb. Minimal compression.)\n(Inst: Close-mic'd marimba, percussive acoustic guitar slaps.)\n(Chords: C#m - F#m - A - B)\n(Melodic-Motif: Syncopated 4-bar marimba phrase, G#-C#-B-A pattern.)\n\n[verse]\n(Mix: Kick drum added, centered.)\n(Inst: Marimba loop continues, acoustic guitar slaps, tight kick drum.)\n(Vocal-Perf: Rhythmic, conversational, slightly breathy delivery. Intimate close-mic feel.)\n(Melody-Rhythm: Fast, 16th-note-based phrasing, syncopated against the main groove.)\n(Melody-Contour: Mostly monotonic, storyteller-like, small melodic leaps for emphasis.)\n(Chords: C#m - F#m - A - B)\nSummer hits different on the rooftop after nine\nAnd you were already there\nYour headphones round your neck, some indie track on loop\nYou act like you didn't care\n\n[pre-chorus]\n(Mix: Stereo width increases slightly. Layered vocals introduced.)\n(Inst: Snare/clap on 2 & 4 enters. Subtle bass synth doubles root.)\n(Vocal-Perf: Intensity builds. Layered harmony vocals added, creating anticipation.)\n(Melody-Contour: Ascending melodic line, builds tension towards chorus.)\n(Transition: Subtle synth riser/swell into chorus.)\n(Chords: C#m - F#m - A - B)\nBut you turned the volume down and leaned a little sideways just to ask me\nWhat I've been listening to lately\nHanded me one earbud, said the bass line drives you crazy\nAnd that's when the whole skyline started swaying\nHey, I never caught a signal quite this clear\nYou're broadcasting on a wavelength I've been tuning in to find all year\nLock me in, I'll stay right here\nDon't fade out now, keep it coming loud and near\nSay girl don't switch the station on me yet\nTurn it up and let the evening get electric\nLock me in, I'll stay right here\nLock lock me in, I'll stay right here\n\n[chorus]\n(Mix: Significantly wider stereo field. Vocals upfront with parallel compression. Bass is fuller.)\n(Inst: Full percussion enters (shakers, etc). Warm synth pad fills background. Bassline more prominent.)\n(Vocal-Perf: Stronger chest voice, more dynamic. Lush background vocal stacks add harmony and width.)\n(Hook-DNA: Primary vocal hook (\"shape of you\") lands on strong beats, followed by a catchy descending melisma. Highly repetitive and simple motif.)\n(Melody-Contour: Starts high on the tonic, descends, then rises again to create an arc.)\n(Chords: C#m - F#m - A - B)\nI'm locked on your frequency\nEvery signal you send is pulling right through me\nAnd the closer you get the less I can breathe\nI'm locked on your frequency\nRooftop wind and the city below\nYou're the only transmission I need to know\nEvery second a new discovery\nI'm locked on your frequency\n\n[verse]\n(Mix: Energy drops back, but percussion remains for momentum.)\n(Inst: Full percussion loop continues, but mix is pulled back slightly.)\n(Vocal-Perf: Returns to conversational, rhythmic style, maintaining forward motion.)\n(Melody-Rhythm: Similar 16th-note phrasing as first verse.)\n(Chords: C#m - F#m - A - B)\nFriday fades and we're still up here at two\nWatching satellites go by\nYou stole my jacket somewhere past midnight\nSaid you'd give it back, nice try\n\n[pre-chorus]\n(Mix: Builds width and layers again.)\n(Inst: Same instrumentation as first pre-chorus.)\n(Vocal-Perf: Builds intensity with layered harmonies.)\n(Melody-Contour: Ascending line, creating tension.)\n(Transition: Synth riser.)\n(Chords: C#m - F#m - A - B)\nWe burned through every playlist, talked about the places that we've never been\nAnd all the ones we swore we'd get to\nYou laughed and said the universe keeps shrinking every time we meet\nLike gravity's been quietly recalculated\nHey, I never caught a signal quite this clear\nYou're broadcasting on a wavelength I've been tuning in to find all year\nLock me in, I'll stay right here\nDon't fade out now, keep it coming loud and near\nSay girl don't switch the station on me yet\nTurn it up and let the evening get electric\nLock me in, I'll stay right here\nLock lock me in, I'll stay right here\n\n[chorus]\n(Mix: Maximal width and energy. More prominent ad-libs.)\n(Inst: All elements present. Clean muted electric guitar subtly doubles marimba riff.)\n(Vocal-Perf: Full energy, lush background vocal stacks, crisp rhythmic ad-libs (\"Oh I oh I\").)\n(Hook-DNA: Primary vocal hook (\"shape of you\") lands on strong beats, followed by a catchy descending melisma. Highly repetitive and simple motif.)\n(Melody-Contour: Starts high on the tonic, descends, then rises again to create an arc.)\n(Chords: C#m - F#m - A - B)\nI'm locked on your frequency\nEvery signal you send is pulling right through me\nAnd the closer you get the less I can breathe\nI'm locked on your frequency\nRooftop wind and the city below\nYou're the only transmission I need to know\nEvery second a new discovery\nI'm locked on your frequency\n\n[bridge]\n(Mix: Percussion drops out initially, creating a breakdown feel. Vocals become the focus.)\n(Inst: Marimba and bass continue. Percussion re-enters halfway through to build back up.)\n(Vocal-Perf: Chanted, repetitive, heavily layered vocals. Creates a hypnotic effect.)\n(Melody-Rhythm: Simple, on-the-beat chant.)\n(Melody-Contour: Static, repetitive melody on a few notes.)\n(Chords: C#m - F#m - A - B)\nDon't you change the channel now\nDon't you change the channel now\nDon't you change the channel now\nDon't you change the channel now",
  "cover_prompt": "生成一张现代独立漫画/都市速写（Indie comic / Urban sketch）风格的插画作为无字音乐专辑封面。画面的核心是：一个夜晚城市高楼的旷阔屋顶空间，前景是一副被随手搁置在混凝土栏杆上的无线耳机，耳机的线自然垂落，背景是远处朦胧的霓虹城市轮廓和星点般的窗光，天色介于深蓝与暖橘之间，整体色调以午夜蓝、暖橙和淡金色为主。采用"清晰线条（Ligne claire）"的精细墨水勾线（Detailed line work），搭配明快、平涂的鲜艳色彩。重点刻画日常市井生活中的平凡物件，营造出一种阳光、真实、生机勃勃且带有一丝独立流行（Indie Pop）气质的叙事感。强烈要求：画面必须是绝对的无字封面！场景中如果出现招牌、路标或海报，必须是完全空白的，或者只用随意的线条/色块代替文字（Abstract scribbles），绝对不要生成任何可读的文字、拼音或英文字母！禁止出现人物、禁止人物轮廓，传达出一种轻松、充满生活气息（Slice-of-life）与街头故事感的视觉美学。",
  "cover": {
    "template_id": 5,
    "template_name": "都市速写/独立漫画流",
    "scene_description": "夜晚城市高楼屋顶，一副无线耳机搁置在混凝土栏杆上，耳机线自然垂落，背景是朦胧霓虹城市轮廓与星点窗光，天色介于深蓝与暖橘之间，色调以午夜蓝、暖橙和淡金色为主"
  },
  "style_direction": "A",
  "style_reference": "Ed Sheeran (tropical-dance era), Sean Paul, Rema"
}
```