{"status": "success", "json_a": {"prompt": "Genre: Mongolian folk pop, vast grassland atmosphere; BPM: 60; Key: B minor (pentatonic feel); Rhythm: Slow 4/4 ballad rhythm with kick on 1, snare/clap on 3. Flowing 16th-note piano arpeggios create motion; Instruments: Grand piano playing arpeggiated chords; Lush orchestral string section for pads and emotional swells; Clean sub-bass; Simple electronic drum kit (kick, clap/snare); Vocals are the primary ethnic carrier; Vocals: Male. Warm, clear tenor with a youthful, pure tone. Gentle folk delivery, emotionally direct and sincere. Pronounced vibrato on sustained notes. Syllable-precise articulation; Mood: Nostalgic and emotional; A wanderer's deep longing for his mother (游子思乡) across a vast, open landscape (grassland/steppe); Production: Polished pop ballad production. Vocals centered and upfront with hall reverb. Piano and strings create a wide, cinematic stereo image; Structure: Intro - Verse - Pre-Chorus - Chorus - Verse - Pre-Chorus - Chorus - Outro; Language: Chinese; Highlight: the pure, high-tenor vocal delivery in the soaring chorus, conveying deep emotion.", "lyrics": "[intro]\n(Chords: Bm - G - D - A)\n(Inst: Solo grand piano playing arpeggiated 16th-note pattern; Melancholy and spacious; Pentatonic melody hint)\n(Mix: Wide stereo piano; gentle reverb)\n\n[verse]\n(Chords: Bm - G - D - A)\n(Vocal-Perf: Gentle, clear tenor entry; Conversational storytelling; Syllable-precise; Minimal vibrato)\n(Inst: Piano continues; Low sustained string pads enter quietly)\n(Melody-Contour: Mostly stepwise motion; low dynamic range)\nsumeih zeregleend gegee anirlaad\nsusuglehiin erhend eej mini bodogdana\n\n[pre-chorus]\n(Chords: G - D - A - A)\n(Vocal-Perf: Emotion builds slightly; melodic line rises)\n(Inst: Strings swell gently; preparing for chorus)\n(Transition: Slight crescendo in strings and vocals)\nhuugee irene geed suugee orgood\nhuslee chiltel alsiig shirtee dee\n\n[chorus]\n(Chords: G - D - A - Bm)\n(Vocal-Perf: Soaring, open-throated tenor; full chest voice; pronounced vibrato on sustained notes; emotional peak)\n(Inst: Full band enters - clean drums, sub bass; Full string section swells; Piano arpeggios become more powerful)\n(Melody-Contour: Wide interval leap on first line; memorable pentatonic hook)\n(Mix: Vocals centered and powerful; Lush, wide mix)\nalsad suuga eej mini\namin hairtai shuteen mini bilee\n\n[verse]\n(Chords: Bm - G - D - A)\n(Vocal-Perf: Returns to gentle, narrative style; emotional but restrained)\n(Inst: Drums simplify to kick/clap; Bass and piano are main support; Strings are subdued pads)\n(Transition: Dynamic drop from chorus)\nzadgai tengerd uul ni zamharna\nzalbirhiin erhend eej mini bodogdana\n\n[pre-chorus]\n(Chords: G - D - A - A)\n(Vocal-Perf: Builds intensity again, matching first pre-chorus)\n(Inst: Strings swell, building anticipation)\nargaliin tsogond tsaigaa buliyeelj\nanis'haa chiltel alsiig shirtee dee\n\n[chorus]\n(Chords: G - D - A - Bm - G - D - A - Bm)\n(Vocal-Perf: Maximum emotional delivery; soaring high notes; full power)\n(Inst: Full ensemble at maximum energy; Cymbals added to drum pattern; Strings at their most cinematic)\n(Structure: Double chorus for climactic feel)\nalsad suuga eej mini\namin hairtai shuteen mini bilee\nalsad suuga eej mini\namin hairtai shuteen mini bilee\n\n[outro]\n(Chords: G - D - A - Bm)\n(Inst: Piano arpeggios break down to single notes; Strings hold a final chord and fade slowly)\n(Transition: Decrescendo to silence)\n(Sound-Design: Final piano note with long reverb tail)"}, "time": 40.4, "attempt": 1, "prompt_ok": true, "lyrics_ok": true, "api": "official", "provider": "google", "model": "gemini-2.5-pro", "usage": {"prompt_tokens": 10634, "completion_tokens": 1025, "total_tokens": 15974}}