playing with sonic pi

sonicpi.rb

arpeggios =
[
  [:A3, :C4, :E4, :A4],
  [:C4, :E4, :G4, :A4, :B4, :C5],
  [:A3, :C4, :E4, :A4, :C5, :E5, :A5, :E5, :C5, :A4, :E4, :C4],
  [:A5, :E5, :C5, :A4, :E5, :C5, :A4, :E4, :C5, :A4, :E4, :C4],
  [:A3, :C4, :E4, :C4, :E4, :A4, :E4, :A4, :C5, :A4, :C5, :E5, :C5, :E5],
  [:A4, :B4, :C5, :B4, :C5, :D5, :C5, :D5, :E5],
  [:A5, :G5, :E5, :G5, :E5, :D5, :E5, :D5, :C5]
]

synths = [:fm, :blade, :square, :saw, :sine, :piano]

arptime = 2.0
arp = []
sleepTime = 0;

live_loop :me do
  arp = arpeggios.sample
  sleepTime = arptime/arp.length
  use_synth synths.sample
  4.times do
    arp.each_with_index do |note, index|
      case (index+1) % 4
      when 1
        sample :drum_bass_hard
        sample :drum_cymbal_soft
      when 2
        sample :drum_cymbal_closed
      when 3
        sample :drum_snare_hard
        sample :drum_cymbal_closed
      when 0
        sample :drum_cymbal_closed
      end
      play note
      sleep sleepTime
    end
  end
end