Valid JSON Notation

This article tries to explain the grammar of the notation used.

{
    title: String,
    composer: String,
    arranger: String, // If left out, this takes the value of composer
    transcriber: String,
    noteMapping: Object, // Used as a hash table
    instruments: [{ // An array of objects. All the instruments would be played concurrently.
        type: String, // A string, or "custom"
        wave: PeriodicWave, // Use audioContext.createPeriodicWave(real, imag) to get a wave 
        notes: String // described in the grammar below as notes
    }]
}

• notes:
  • number(sections)notes
  • "" (empty string)
• number
  • integer.digits
• integer:
  • (1 to 9)digits
• digits:
  • (0 to 9)digits
  • ""
• sections:
  • section sections
  • ""
• section:
  • /modifier[section]
  • chords
• modifier:
  • octave modifier
  • integer modifier
  • ""
• octave:
  • +octave
  • -octave
  • "" (empty string)
• chords:
  • chord,chords
  • "" (empty string)
• chord:
  • note chord
  • note
• note:
  • pitch integer
• pitch:
  • character octave
  • &
• character:
  • Any character specified in noteMapping.