{
  "song_id": "01_夜曲_20260418",
  "prompt": "Genre: Mandopop / R&B / Classical Crossover; BPM: 87; Key: F minor; Rhythm: Slow, steady R&B beat. 16th-note hi-hats providing drive. Syncopated kick/snare. Loop-based groove.; Instruments: Classical piano (main theme arpeggios), nylon acoustic guitar (counter-melodies), synth strings (pads), R&B drum machine, round synth bass (root notes).; Vocals: Male. Relaxed, rhythmic sing-rap in verses. Clear, breathy, melodic singing in chorus. Intimate and upfront with light reverb and compression.; Mood: Playing a dusty grand piano in a moonlit, abandoned ballroom, rain streaking the tall windows.; Production: Polished, cinematic mix. High-fidelity clarity, wide stereo field. Analogue warmth.; Language: Mandarin; Highlight: The brief pause after the rap verse, where only the piano arpeggio and a string swell lead into the sung chorus melody.",
  "title": "路由器心跳",
  "lyrics": "[intro]\n(Chords: Fm - C7sus4 - Fm - C7)\n(Inst: Classical piano arpeggios introduce the main theme over a sparse R&B beat. Nylon guitar adds subtle fills. Hook DNA established.)\n(Mix: Intimate, piano-centric, atmospheric.)\n\n[verse]\n(Chords: Fm - C7 - Fm - Bbm7 - C7)\n(Vocal-Perf: Low-energy, conversational sing-rap delivery. Rhythmic and percussive phrasing. Mezzo-piano.)\n(Inst: Beat and piano continue. Bass enters, providing a solid foundation. Vocal is the main focus.)\n(Melody-Rhythm: Flowing, speech-like.)\n洗衣机停了 湿衣服还在转筒里\n忘了是第几次 忘了有多少天\n你惯用的那个密码 我没有改\n偶尔进去看 空间里没有更新\n冰箱贴上你写的那串备忘\n墨迹晕开了一半 字还在\n我去超市买了一袋你不爱的米\n结账时找不到购物袋 站在原地\n收银机的提示音 响了一遍又一遍\n我才发现后面排了一排人\n热水器定时启动 浴室里升起白雾\n像有人刚刚洗完澡离开这里\n(Transition: Beat drops out, synth pad swells, creating suspension before chorus.)\n\n[chorus]\n(Chords: Dbmaj7 - Abmaj7 - C7 - Fm)\n(Vocal-Perf: Shifts to a clear, melodic, sung tone. More emotional and sustained notes. Mezzo-forte.)\n(Inst: Full arrangement kicks in. Lush synth strings enter, creating a wide, cinematic backdrop. Piano continues arpeggiating.)\n(Mix: Opens up significantly. Wide stereo image with strings. Vocals are layered and centered.)\n(Melody-Contour: Soaring arch shape.)\n路由器的指示灯 一格一格地闪\n我坐在它对面 数呼吸 数时间\n蓝牙名称还留着你起的那个\n每次搜索都出现\n我不配对 也不删\n就让它亮在列表里 陪我过今晚\n\n[verse]\n(Chords: Fm - C7 - Fm - Bbm7 - C7)\n(Vocal-Perf: Returns to the rhythmic, narrative style of the first verse. A sense of weary resignation.)\n(Inst: Arrangement thins out again, similar to verse 1. Focus returns to the groove and the vocal storytelling.)\n(Mix: Dynamic drop from the chorus, creating contrast. Vocals brought forward again.)\n床头灯的开关拨了拨不亮\n换了灯泡 才发现是插座松了\n这种事以前都是你发现的\n我只管坐在旁边看你蹲着修\n手机相册自动备份跑了一整夜\n进度条卡在九十七 停着不走\n(Transition: Smooth transition with the beat continuing directly into the final chorus.)\n\n[chorus]\n(Chords: Dbmaj7 - Abmaj7 - C7 - Fm)\n(Vocal-Perf: Most powerful delivery. Increased intensity and emotion. Subtle ad-libs in the background.)\n(Inst: All elements at full force. Strings are prominent, driving the emotional peak of the song.)\n(Mix: Widest and most dense part of the track. Everything is present to support the climactic vocal.)\n(Sound-Design: A subtle whoosh effect might lead into this final chorus for emphasis.)\n路由器的指示灯 一格一格地闪\n我已经很久 没有人可以打电话\n蓝牙名称还留着你起的那个\n搜索到 又关掉\n关掉 又搜索\n信号那么近 你却在另一个宇宙的那端\n\n[outro]\n(Chords: Fm - C7sus4 - Fm - C7)\n(Vocal-Perf: Fades into a more reflective, almost whispered tone. Trails off.)\n(Inst: Gradually strips away layers, leaving only the piano theme and the sparse beat. A final nylon guitar flourish.)\n(Structure: Music fades out slowly, leaving the piano's reverb tail.)\n洗衣机停了 湿衣服还在转筒里\n忘了是第几次 忘了有多少天\n路由器的灯 还在闪\n还在闪",
  "cover_prompt": "生成一张极简主义（Minimalist）插画和阴影艺术（Shadow art）风格的艺术图片作为无字音乐专辑封面。画面的核心是一台路由器的剪影静置在窗台角落，几根细长的天线投影斜斜打在墙面上，窗户格栅的光影与天线阴影交叠，像一张无声的信号网悬在空中。整个投影区域具有冷蓝色带细腻颗粒感的纹理，类似旧丝网印刷（Screenprint）的质感，边缘向暗处柔和消散。背景是一个深灰蓝的实色区域，带有微妙的亚光纹理，透出深夜室内一个人独处的沉寂氛围。构图干净、宁静且优雅。强烈要求：这是一张纯粹的、极简主义、治愈系插图，绝对不要出现具体的五官、现代工业物品的写实细节或3D渲染效果！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！传达出一种宁静、舒适、怀旧且梦幻的艺术气息。",
  "cover": {
    "template_id": 6,
    "template_name": "极简窗影治愈流",
    "scene_description": "一台路由器的剪影静置在窗台角落，几根细长的天线投影斜斜打在墙面上，窗户格栅的光影与天线阴影交叠，像一张无声的信号网悬在空中。整个投影区域呈冷蓝色带细腻颗粒感纹理，类似旧丝网印刷质感，边缘向暗处柔和消散。背景为深灰蓝实色区域，带微妙亚光纹理，透出深夜室内独处的沉寂氛围。"
  }
}