{
  "song_id": "01_Beautiful_20260506",
  "prompt": "Genre: Pop R&B with Trap undertones; BPM: 100; Key: D major; Rhythm: Relaxed mid-tempo trap groove with syncopated 808 kick/bass pocket, a prominent clap on beats 2 & 4, and fast 16th-note hi-hat rolls.; Instruments: Programmed 808 kit, deep gliding sine bass, warm detuned e-piano, shimmering ambient pad, muted synth plucks; Vocals: Male and Female duet. Male lead is a breathy, melismatic R&B tenor. Female lead is an intimate, rhythmic soprano. Both feature stylistic autotune and lush background vocal stacks.; Mood: The quiet hum of a city at 3 AM, seen through a high-rise window, with the warm glow of a single lamp inside.; Highlight: The sudden textural shift when the higher, rhythmically precise female vocal enters after the smooth, flowing male chorus, creating an immediate and refreshing dynamic contrast.",
  "title": "糖纸折痕",
  "lyrics": "[chorus]\nHook-DNA: Rhythmic pattern is four repeating eighth notes on beats 1-2; Pitch anchors on the 3rd of the tonic chord (F#); Motif repeats 4x with slight variation before resolving down.\nMelody-Contour: Gentle descending stepwise motion from 5th to 3rd, creating a soothing, simple arch.\nMelody-Rhythm: Vocal phrase starts directly on beat 1 with a consistent eighth-note flow, creating an infectious pop earworm.\nMelody-Harmonic-Tension: Melody is highly consonant, with gentle tension created when the melody's F# becomes the sweet major 7th over the Gmaj7 (IV) chord.\nVocal-Perf: Male lead, breathy and close-mic'd, soft delivery, almost a whisper.\nInst: Warm e-piano chords, deep 808 bass pulse, sparse trap hi-hats, distant ambient pad.\nChords: (Gmaj7 - A - Dmaj7 - Bm)\nMix: Vocal front and center with light saturation. Wide stereo field. Sub-bass prominent but clean. Crisp highs on hats. Main reverb is a medium plate, side-chained to the vocal.\n那件旧毛衣还压在箱底\n你叠衣服的方式我记得仔细\n时间流过去又流过来\n我只想让你知道\n\n[verse]\nMelody-Contour: More conversational, smaller melodic range, staying on a few key notes.\nMelody-Rhythm: Syncopated, speech-like rhythm that plays against the steady beat, phrases starting after the downbeat.\nVocal-Perf: Male lead, slightly more assertive delivery than chorus, rhythmic and confident.\nInst: Kick drum pattern becomes more active, hi-hats introduce faster rolls, e-piano is more rhythmic.\nChords: (Gmaj7 - A - Dmaj7 - Bm)\nMix: Stereo field slightly narrower than chorus to build dynamic contrast.\n你总爱把糖纸叠成小船\n放在我掌心说这是今天\n后来那些糖我一颗没吃\n只是坐在楼道数你的脚步声\n上楼三十级\n你每次都停第二十七\n回过头冲我笑一下再走\n那个笑容重了又轻\n\n[verse]\nMelody-Contour: Ascending line in the first two phrases, creating a sense of questioning or urgency.\nMelody-Rhythm: Highly syncopated, percussive delivery with precise staccato notes and rests.\nVocal-Perf: Female lead enters. Timbre is brighter, breathier, and more rhythmically sharp than male lead.\nInst: Beat remains consistent, allowing the vocal change to be the main focus.\nChords: (Gmaj7 - A - Dmaj7 - Bm)\n那盒糖纸攒了整整一年\n我翻出来才发现压出了折痕\n你搬走的那个下午\n阳光斜进来\n把整条走廊照得太亮\n亮得我站不住\n\n[bridge]\nMelody-Harmonic-Tension: Phrases consistently end on the 2nd or 4th over the dominant (A) chord, creating unresolved tension that pulls strongly toward the final chorus.\nMelody-Contour: Ascending melody builds energy, peaking on the final line before dropping back into the chorus.\nVocal-Perf: Female lead, dynamics swell from intimate to more powerful, harmonies are introduced.\nInst: A low-pass filter sweeps open on the pad, hi-hats become more frantic, subtle riser SFX builds in the background.\nChords: (Gmaj7 - Gmaj7 - A - A)\n我没想过要开口挽留\n话到喉咙口 烫成了哑\n手边没有什么值钱的东西\n只剩那些糖纸\n和一个没说出口的名字\n\n[chorus]\nHook-DNA: Rhythmic pattern is four repeating eighth notes on beats 1-2; Pitch anchors on the 3rd of the tonic chord (F#); Motif repeats 4x with slight variation before resolving down.\nMelody-Harmonic-Tension: Consonant melody, but the emotional weight is increased by the dense vocal layers.\nVocal-Perf: Male and Female duet. Lush background vocal stacks enter, singing harmonies and counter-melodies.\nInst: Full instrumentation, drums hit harder, an additional arpeggiated synth layer is added for energy.\nChords: (Gmaj7 - A - Dmaj7 - Bm)\nMix: Widest and loudest point of the song. Parallel compression on the master bus for punch. Vocal ad-libs are panned hard left and right.\n那件旧毛衣还压在箱底\n你叠衣服的方式我记得仔细\n时间流过去又流过来\n我只想让你知道\n那些糖纸没有一张扔掉\n折痕是我数过你的证明\n\n[outro]\nVocal-Perf: Male vocal ad-libs, fading out with heavy reverb and delay throws.\nInst: Instruments strip away one by one, leaving only the e-piano and a lingering pad.\nMix: Gradual fade-out, reverb tails become more prominent as dry signals disappear.\n时间流过去又流过来\n我只想让你知道\n只是想让你知道\n那个折痕是真的",
  "cover_prompt": "生成一张无字音乐专辑封面。风格严格参照 20 世纪 Color Field Painting（色域绘画），如 Mark Rothko 晚期作品的色层叠压逻辑与 Helen Frankenthaler 的浸染法（soak-stain technique）。画面的核心色彩与情绪：温热泛旧的奶油黄与沉静的灰蓝之间的渐变叠压，像一张被反复折叠后展开的糖纸，折痕处颜色更深、更饱满，四角微微泛出褪色的暖橘，整体传递出一种被珍藏多年却又无处安放的柔软钝痛。技法要求：色彩之间的过渡必须模拟颜料在未上浆的粗纹棉布（raw cotton canvas）上自然渗透、晕开的效果，边界柔软但保留颜料浓度不均匀造成的自然深浅变化（pigment pooling）。画面需要呈现真实画布的编织肌理（woven canvas texture），局部可见稀薄处透出的底布纹路。整体色调偏低饱和、微微发灰（muted, desaturated palette），避免荧光感和数字渐变的均匀平滑。绝对禁止：任何文字/字母/拼音、人物或人物轮廓、具象物体、几何图案、锐利边缘、胶片颗粒滤镜、3D渲染质感。",
  "cover": {
    "template_id": 1,
    "template_name": "环境光晕流",
    "scene_description": "温热泛旧的奶油黄与沉静的灰蓝之间的渐变叠压，像一张被反复折叠后展开的糖纸，折痕处颜色更深、更饱满，四角微微泛出褪色的暖橘，整体传递出一种被珍藏多年却又无处安放的柔软钝痛"
  }
}