{
  "name": "Master the 12 Keys",
  "short_name": "12 Keys",
  "description": "By-ear scale, vibrato & long-tone practice for every wind instrument, from a Selmer Paris Artist & 32-year conservatory professor.",
  "start_url": "/",
  "scope": "/",
  "display": "standalone",
  "orientation": "portrait",
  "background_color": "#14121A",
  "theme_color": "#14121A",
  "lang": "en",
  "icons": [
    { "src": "icon.svg", "sizes": "any", "type": "image/svg+xml", "purpose": "any maskable" }
  ]
}