Examples

Complete songs you can copy into data/<namespace>/noteworthy/songs/ and change. See Song Format for what each part means.

A simple melody

The start of Twinkle Twinkle Little Star, one instrument, one note per step. The G4:2 and C4:2 at the end of each line last twice as long.

{
  "title": "Twinkle Twinkle (melody)",
  "author": "Traditional",
  "tempo": 5,
  "parts": [
    {
      "instrument": "harp",
      "notes": [
        "C4", "C4", "G4", "G4", "A4", "A4", "G4:2",
        "F4", "F4", "E4", "E4", "D4", "D4", "C4:2"
      ]
    }
  ]
}

A melody with a bass

The same melody with a second part. The bass plays one note every 2 steps, so both parts are 16 steps long and end together.

{
  "title": "Twinkle Twinkle (with bass)",
  "author": "Traditional",
  "tempo": 5,
  "parts": [
    {
      "instrument": "harp",
      "notes": [
        "C4", "C4", "G4", "G4", "A4", "A4", "G4:2",
        "F4", "F4", "E4", "E4", "D4", "D4", "C4:2"
      ]
    },
    {
      "instrument": "bass",
      "notes": [
        "C4:2", "E4:2", "F4:2", "C4:2",
        "F4:2", "C4:2", "G3:2", "C4:2"
      ]
    }
  ]
}

Chords

Notes joined with + play together. Here, four chords of 4 steps each (C, F, G, C), with a drum beat in a second part.

{
  "title": "Chords",
  "tempo": 4,
  "parts": [
    {
      "instrument": "guitar",
      "notes": ["C4+E4+G4:4", "F4+A4+C5:4", "G4+B4+D5:4", "C4+E4+G4:4"]
    },
    {
      "instrument": "basedrum",
      "notes": [
        "F#3", "-", "F#3", "-", "F#3", "-", "F#3", "-",
        "F#3", "-", "F#3", "-", "F#3", "-", "F#3", "-"
      ]
    }
  ]
}

A round with two voices

The start of Frère Jacques as a round: the second voice plays the same notes, but starts 8 steps later with a rest (-:8). Both voices use the same instrument, they are just two parts.

{
  "title": "Frère Jacques (round)",
  "author": "Traditional",
  "tempo": 4,
  "parts": [
    {
      "instrument": "harp",
      "notes": [
        "C4", "D4", "E4", "C4", "C4", "D4", "E4", "C4",
        "E4", "F4", "G4:2", "E4", "F4", "G4:2"
      ]
    },
    {
      "instrument": "harp",
      "notes": [
        "-:8",
        "C4", "D4", "E4", "C4", "C4", "D4", "E4", "C4",
        "E4", "F4", "G4:2", "E4", "F4", "G4:2"
      ]
    }
  ]
}

Try changing the second instrument to flute to hear each voice better, or the rest to -:4 to hear how the round changes.