Aratu music written to play, and to change while it plays

1. A first piece

▶ Open in Aratu to hear and change the examples

Try it▶ Hear it in Aratu
meter: 4/4
tempo: 96
key: A minor

drums {
  hh = cc cc co cc
  bd = b - b -
  sd = - s - s
}

bass = | a2 _ e2 _ | f2 _ c3 _ |

guitar {
  chords = | Am | F | C G | G |
  strum  = D du -u du
}

The first lines set the frame of the piece: meter, tempo and key. Each part follows. There is no main, no braces to balance before the music plays, and no word that exists only for the computer. // starts a comment.