Generating sweet saw tooth wave synths in Ruby, duuuude.

music.rb

def note frequency, volume, chord, octave
  octaves = [ 'Qj}6jQ6%' '_u}6u_6%' ] # Some good sounding random octaves
  octave_index = 0
  octave_index = (frequency % 4 >> 16) % octaves.size
  volume += 1

  return 0 if volume.zero?
  choose = frequency * (octaves[octave_index][chord % 8].ord + 51) 
  choose = (choose >> octave) % 4
  choose % volume << 4
end

amp = 0
instruments = 4
loop do
  amp += 1 # Pick an amplitude increment that sounds good
  notes = Array.new

  chord = amp >> 10 # Increase me to sloooowww the music
  volume = amp

  notes << note(amp, 1, chord, 12)
  volume = amp >> 15 # Adjust the volume each iteration, lateness
  notes << note(amp, volume,     chord ^ amp >> 13,            10)
  notes << note(amp, volume / 3, chord + ((amp >> 11) % 3),    10)
  notes << note(amp, volume / 5, 8 + chord - ((amp >> 10) % 3), 9) # oct higher

  print notes.sum.to_i.chr
  sleep ARGV[0].to_f
end

music_beeps.rb

def note frequency, volume, chord, octave
  octaves = [ 'Qj}6jQ6%' '_u}6u_6%' ] # Some good sounding random octaves
  octave_index = 0
  octave_index = (frequency % 4 >> 16) % octaves.size
  volume += 1

  return 0 if volume.zero?
  choose = frequency * (octaves[octave_index][chord % 8].ord + 51) 
  choose = (choose >> octave) % 4
  choose % volume << 4
end

amp = 0
instruments = 4
loop do
  amp += 2 # Pick and amplitude that sounds good
  notes = Array.new

  chord = amp >> 14 # Increase me to sloooowww the music
  volume = amp >> 16 # Adjust the volume each iteration, lateness
  
  notes << note(amp % 255, 1, chord, 12)
  notes << note(amp % 255, volume / 3, chord + ((amp >> 11) % 3),    10)
  notes << note(amp % 255, volume / 5, 8 + chord - ((amp >> 10) % 3), 9)

  print notes.sum.to_i.chr
  sleep ARGV[0].to_f
end

music_def.raw

music_def.wav

music_old.rb

prog.raw

prog.wav

var_vol.raw

var_vol.wav