Exemplar code for the Chapter 3 project The Shape of Sounds in the book Coding and the Arts (creativecodingbook.com). Paste into Sonic Pi to run.

Chapter3_Shape_Exemplar.rb

use_bpm 120

define :my_sound do |n|
  play n,
    attack: 0.5,
    attack_level: 1,
    decay: 0.25,
    sustain_level: 0.4,
    sustain: 0.75,
    release: 0.5
end

2.times do
  my_sound('C')
  sleep 0.5
  my_sound('D')
  sleep 1
  my_sound('C')
  sleep 0.5
  my_sound('E')
  sleep 1
  my_sound('C')
  sleep 0.5
  my_sound('F')
  sleep 1
  my_sound('C')
  sleep 0.5
  my_sound('G')
  sleep 3
end