{
  "prompt": "Genre: Mongolian folk pop, vast grassland atmosphere; BPM: 112; Key: C major (pentatonic); Rhythm: Steady 4/4 walking rhythm, with orchestral percussion providing a majestic, expansive feel; Instruments: Layer 1 (Ethnic core): Morin khuur playing lyrical, soaring lead melodies. Layer 2 (Rhythm foundation): Soft kick, orchestral toms, and sustained bass create a steady, unobtrusive pulse. Layer 3 (Modern production): Lush string orchestra and piano provide a vast, cinematic backdrop; Vocals: warm male baritone, resonant storytelling delivery, clear and emotive; Mood: Nostalgic and majestic, evoking the vast Mongolian steppe with a theme of homeland longing (思乡); Production: Wide cinematic mix, vocals and morin khuur upfront, large but natural reverb creating a sense of open space; Structure: Intro - Verse - Chorus - Interlude - Verse 2 - Chorus 2 - Bridge - Outro; Language: Mandarin; Highlight: the soaring and emotive morin khuur melody that echoes the vocal",
  "lyrics": "[intro]\n(Chords: C - G - Am - G - F - C - F - G)\n(Mix: Wide stereo; Morin khuur centered; lush strings pad)\n(Melody-Contour: Morin khuur introduces main pentatonic theme; lyrical and soaring)\n(Inst: Lush string orchestra sets a cinematic, vast tone; Morin khuur enters with the primary emotive melody)\n(Transition: Piano arpeggio leads into verse)\n[verse]\n(Chords: C - G - Am - Em - F - C - F - G)\n(Vocal-Perf: Warm baritone enters; clear, conversational storytelling; every syllable distinct; minimal vibrato)\n(Inst: Sparse accompaniment; piano arpeggios, sustained low strings; Morin khuur provides soft fills)\n(Melody-Rhythm: Follows natural speech rhythm; phrases are clear and concise)\n(Transition: String section swells to lift into next verse)\n鸿雁天空上\n对对排成行\n江水长\n秋草黄\n草原上琴声忧伤\n[verse 2]\n(Chords: C - G - Am - Em - F - C - F - G)\n(Vocal-Perf: Delivery gains a bit more intensity and emotion)\n(Inst: Percussion enters with soft, deep toms; string section becomes more active)\n(Mix: Vocals remain upfront; build in instrumental density behind)\n(Transition: Crescendo in strings and percussion builds directly into chorus)\n鸿雁向南方\n飞过芦苇荡\n[chorus]\n(Chords: F - G - C - Am - F - G - C)\n(Vocal-Perf: More powerful chest voice; sustained notes on phrase endings with natural vibrato; soaring and emotive)\n(Melody-Contour: Reaches melodic peak; memorable hook on '心中是北方家乡')\n(Inst: Full orchestra and percussion; Morin khuur doubles the vocal melody or plays a soaring counter-melody)\n(Mix: Dynamic peak of the first half; wide and epic sound)\n天苍茫\n雁何往\n心中是北方家乡\n天苍茫\n雁何往\n心中是北方家乡\n[interlude]\n(Chords: F - C - G - Am - F - C - G - C)\n(Inst: Instrumental showcase; Morin khuur takes the lead with a virtuosic, emotional solo over the orchestral bed)\n(Mix: Orchestra pulls back slightly to feature the solo instrument)\n(Sound-Design: Sense of vastness created by long reverb tails on strings)\n(Transition: Decrescendo to a single piano note, leading into quiet verse)\n[verse 3]\n(Chords: C - G - Am - Em - F - C - F - G)\n(Vocal-Perf: Returns to a softer, more intimate and wistful tone)\n(Inst: Instrumentation drops back to piano and sparse strings, similar to first verse)\n(Mix: Creates dynamic contrast after the epic interlude)\n(Transition: Gradual build with re-introduction of orchestral layers)\n鸿雁北归还\n带上我的思念\n歌声远\n琴声长\n草原上春意暖\n[bridge]\n(Chords: Dm - G - C - F - Dm - Em - Am)\n(Vocal-Perf: Voice builds in power and urgency; sense of questioning and yearning)\n(Melody-Contour: Ascending line creates tension and leads to final climax)\n(Inst: Orchestra swells with rising string lines and dramatic percussion hits)\n(Transition: A brief pause or held chord before launching into the final outro section)\n鸿雁向苍天\n天空有多遥远\n[outro]\n(Chords: F - G - C - G/B - Am - F - G - C)\n(Vocal-Perf: Peak emotional delivery; powerful, sustained high notes; passionate and resolute)\n(Inst: Full cinematic orchestra at maximum power; Morin khuur soars above everything)\n(Mix: The song's ultimate climax; everything is loud, wide, and epic)\n(Structure: Final vocal phrases followed by instrumental fade with Morin khuur holding the last note)\n酒喝干再斟满\n今夜不醉不还\n酒喝干再斟满\n今夜不醉不还",
  "song_id": "01_鸿雁_20260507",
  "_meta": {
    "provider": "google",
    "model": "gemini-2.5-pro",
    "usage": {
      "prompt_tokens": 11408,
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      "total_tokens": 17299
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    "generated_at": "2026-05-07T15:45:46.407100+08:00"
  }
}