Lyrics and music controls

const job = await api.post('/api/generation/generate', {
  creatorAddress: userAddress,
  prompt: 'Slow electronic ballad with intimate vocals and soft piano',
  instrumental: false,
  vocalLanguage: 'en',
  audioDuration: 90,
  bpm: 80,
  lyrics: '[Verse]\nStreetlights fade before the sun\nI keep walking, one by one\n\n[Chorus]\nLeave the window open\nLet the morning in',
  modelVariant: 'sft',
  licenses: 0, license_price: 0, stream_price: 0,
});

const formatted = await api.post('/api/generation/format', {
  prompt: 'slow electronic ballad, soft piano, intimate vocal',
  lyrics: '[Verse]\nStreetlights fade before the sun',
});
// Review these strings before submitting them.
const prompt = formatted.formatted_caption;
const lyrics = formatted.formatted_lyrics;

const suggestion = await api.post('/api/generation/sample', {
  query: 'slow electronic ballad',
  instrumental: false,
  vocalLanguage: 'en',
});
const proposed = {
  prompt: suggestion.caption,
  lyrics: suggestion.lyrics,
  ...(suggestion.bpm == null ? {} : { bpm: suggestion.bpm }),
  ...(suggestion.key_scale ? { keyScale: suggestion.key_scale } : {}),
  ...(suggestion.duration == null ? {} : { audioDuration: suggestion.duration }),
};