A 4 voices fugato with decrescendo

A 4 voices fugato.rb

use_bpm 100
set :kill,false #flag used to stop live_loops
fadeInitiate = rt(30) #use rt( ) function to set time independent of bpm
fadeTime = rt(30)
use_debug false #remove printout of synths playing
cells = [
  [2],
  [1,1],
  [1,0.5,0.5],
  [0.5,0.5,1],
  [0.5,0.5,0.5,0.5],
  [0.75,0.25, 0.75,0.25],
  [0.25,0.25, 0.25,0.25, 0.25,0.25,0.25,0.25],
  [1, 0.25,0.25,0.25,0.25],
  [0.25,0.75, 0.25,0.75],
  [0.5,1,0.5],
  [1.5,0.5],
  [0.5,1.5]
]

with_fx :reverb do
  with_fx :level,amp: 1 do|v| #use fx level to control fade out
    at fadeInitiate do #at specified time control fade out via pointer v
      puts "Fadeout started"
      control v,amp: 0,amp_slide: fadeTime
      sleep fadeTime
      puts "Fade complete: stopping live loops"
      set :kill,true #set kill flag which will stop the live loops
    end
    
    live_loop :rythm do
      ##| stop
      use_synth :pluck
      n = rand_i(cells.length)
      #puts n
      cells[n].length.times do
        stop if get(:kill)
        play scale(:d4,:major).choose,release: cells[n].tick
        sleep cells[n].look
      end
    end
    
    
    
    live_loop :rythm2, delay: 8 do
      ##| stop
      use_synth :bass_foundation
      n = rand_i(cells.length)
      #puts n
      cells[n].length.times do
        stop if get(:kill)
        play scale(:d4,:major).choose,release: cells[n].tick, cutoff: rrand(40,120), amp: 0.5, pan: rrand(-1.0,1.0)
        sleep cells[n].look
      end
    end
    
    
    
    live_loop :rythm3, delay: 16  do
      ##| stop
      use_synth :bass_foundation
      n = rand_i(cells.length)
      #puts n
      cells[n].length.times do
        stop if get(:kill)
        play scale(:d4,:major).choose,release: cells[n].tick, cutoff: rrand(40,120), amp: 0.5, pitch: -12
        sleep cells[n].look
      end
    end
    
    
    
    live_loop :rythm4, delay: 24  do
      ##| stop
      use_synth :piano
      n = rand_i(cells.length)
      #puts n
      cells[n].length.times do
        stop if get(:kill)
        play scale(:d4,:major).choose,release: cells[n].tick, amp: 0.5, pitch: -24, amp: 1
        sleep cells[n].look
      end
    end
  end#level
end#reverb

Made with Sonic Pi!