{
  "song_id": "01_Uptown Funk_20260330",
  "prompt": "Genre: Funk-Pop, Nu-Disco, driving club anthem; BPM: 115; Key: Dm7; Rhythm: Tight, syncopated 16th-note funk groove with a heavy backbeat and interlocking bass/drum pattern; Instruments: Layer 1: Stabbing synth brass riff and clean, muted funk guitar stabs. Layer 2: Punchy live funk drum kit with a cracking snare and a melodic, syncopated live electric bass. Layer 3: Live horn section (trumpet, sax) providing powerful stabs and fills.; Vocals: Male lead R&B Vocalist with a high-energy tenor, mixing powerful James Brown-style belts and charismatic shouts with group call-and-response backing vocals.; Mood: Unapologetic swagger on a vibrant, packed retro dancefloor.; Production: Modern, clean, and punchy mix. Bass and drums are central and compressed. Wide stereo image with horns and guitar panned.; Structure: Intro - Verse - Chorus - Verse - Chorus - Bridge - Chorus - Outro; Highlight: The incredibly tight, syncopated interplay between the live bass guitar and the drum kit.",
  "title": "Last Call Fever",
  "lyrics": "[intro]\n(Chords: Dm7 - G7)\n(Inst: Muted bassline, sparse drum machine beat, hand claps)\n(Motif-Anatomy: Repetitive two-note bass motif)\n(Phrase-Structure: Short, introductory vocal phrases)\n(Vocal-Perf: Low-key, talk-sung swagger, hype-man style)\n(Mix: Dry, centered, building anticipation)\nThat bass, that snap\nFriday fever, no turning back\nThis groove, for the night owls\nThe dance-floor prowlers\nBorn entertainers\n\n[verse]\n(Chords: Dm7 - G7)\n(Transition: Drum fill into full groove)\n(Inst: Full funk band enters: punchy live drums, syncopated bass, clean guitar stabs, horn hits)\n(Contour-&-Range: Rhythmic mid-range delivery, building to higher energy shouts)\n(Phrase-Structure: Call and response with \"whuoo\" backing vocals)\n(Vocal-Perf: Charismatic, percussive delivery, escalating intensity)\n(Mix: Dense, wide, powerful rhythm section)\nRollin' through the boulevard with the windows down\nGot the vintage threads, got the baddest sound\nCatch me in the mirror, blowin' kisses at my face\nFellas hit the tempo (whuoo)\nFellas hit the tempo (whuoo)\nFellas hit the tempo (whuoo)\n'Cause the last call fever 'bout to shake the place\nAnd the last call fever don't negotiate\n\n[chorus]\n(Chords: Dm7 - G7)\n(Sound-Design: Synth brass stabs enter)\n(Inst: Synth brass riff becomes the main hook, horns punctuate)\n(Motif-Anatomy: Iconic synth brass riff, vocal hook)\n(Phrase-Structure: Repetitive, anthemic 4-bar phrases)\n(Vocal-Perf: High-energy shouting, powerful belting, group hype vocals)\n(Mix: Maximum energy, synth brass centered, everything hits hard)\nToo slick (oh snap)\nGot the DJ spinnin' heart attacks\nToo slick (oh snap)\nMake a mannequin wanna clap it back\nThe lights go low and the horns go pop\nYou want the proof? Just drop (come on)\n\n[verse]\n(Chords: Dm7 - G7)\n(Structure: Full band dropout, \"Stop\")\n(Transition: Record scratch sound, snare fill brings beat back)\n(Inst: Beat drops to just kick and snaps, bass re-enters with swagger, full band returns)\n(Contour-&-Range: Starts conversational, builds back to energetic delivery)\n(Phrase-Structure: Storytelling lyrical flow)\n(Vocal-Perf: Starts with a command, shifts to smooth, confident storytelling)\n(Mix: Dynamic shift from full to sparse and back)\nHold up, one second\nPop the cork, yeah, we earned this present\nTake a spin, grab a friend\nMaria, cue the band!\nBronx to Berlin, Tokyo to Memphis\nWhen we pull up, curtains up\nSlicker than a fresh coat of varnish\n\n[chorus]\n(Chords: Dm7 - G7)\n(Sound-Design: Explosive horn fills)\n(Inst: All elements driving, horns more active, synth brass hook prominent)\n(Motif-Anatomy: Reiteration of the main vocal and instrumental hooks)\n(Phrase-Structure: Anthemic repetition, high energy)\n(Vocal-Perf: Ad-lib heavy, full-power belting, group vocals prominent)\n(Mix: Wall of sound, high-energy, compressed for maximum punch)\nToo slick (oh snap)\nGot the DJ spinnin' heart attacks\nToo slick (oh snap)\nMake a mannequin wanna clap it back\nThe lights go low and the horns go pop\nYou want the proof? Just drop (come on)\n\n[bridge]\n(Chords: Dm7)\n(Structure: Breakdown, rhythm simplifies)\n(Inst: Groove simplifies to kick, bass, and vocals, builds with claps and synth layers)\n(Motif-Anatomy: Chant-like vocal repetition)\n(Phrase-Structure: Repetitive chant building in intensity)\n(Vocal-Perf: Hypnotic group chant, lead vocal ad-libs over top)\n(Mix: Focus on the vocal chant, gradual instrumental build)\nBefore we bounce\nLet me spell it out real clear now\nLast call fever, last call fever\nLast call fever, last call fever\nCome on, move, lock into it\nIf you got it then commit it\nIf you feel it then admit it\nDon't just talk about it, bring it\n\n[chorus]\n(Chords: Dm7 - G7)\n(Transition: Massive drum fill, riser)\n(Sound-Design: Crowd noise, explosive final entry)\n(Inst: Every instrument at maximum energy, layered horns and synths)\n(Motif-Anatomy: Final powerful statement of the main hook)\n(Phrase-Structure: Extended repetition for dance climax)\n(Vocal-Perf: Ad-lib \"Come on!\", shouted with ultimate energy)\n(Mix: Loudest section, heavily compressed, party atmosphere)\nWell the lights go low and the horns go pop\nYou want the proof? Just drop (come on)\nYou want the proof? Just drop\nYou want the proof? Just drop\nYou want the proof? Just drop\nYou want the proof? Just drop\nHey, hey, hey, oh!\n\n[outro]\n(Chords: Dm7 - G7)\n(Inst: Band vamps on the main groove, horns play solos/fills)\n(Motif-Anatomy: Chant fades)\n(Phrase-Structure: Repetitive vocal phrases over instrumental vamp)\n(Vocal-Perf: Call and response chants, ad-libs, fading out)\n(Mix: Gradual fade out, individual instruments showcased)\nLast call fever, last call fever\nLast call fever, last call fever\nLast call fever, last call fever\nLast call fever, last call fever",
  "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：漆黑背景上，由高对比度的霓虹橙红、电光紫与亮金色粗细交替的弧线密集交织排列，从画面底部中央一个微微发光的半圆形负空间向上方爆裂扩散，线条带有强烈的速度感与节拍震动感，像凌晨最后一支舞曲炸开时舞池中央灯球旋转扫射出的光线轨迹，充满汗水蒸腾的热度与停不下来的能量。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": "漆黑背景上，由高对比度的霓虹橙红、电光紫与亮金色粗细交替的弧线密集交织排列，从画面底部中央一个微微发光的半圆形负空间向上方爆裂扩散，线条带有强烈的速度感与节拍震动感，像凌晨最后一支舞曲炸开时舞池中央灯球旋转扫射出的光线轨迹，充满汗水蒸腾的热度与停不下来的能量。"
  },
  "style_direction": "A",
  "style_reference": "Bruno Mars, Mark Ronson, James Brown"
}