step_sequencer script skeleton

song.rb

# This is written for use with https://github.com/maxpleaner/step_sequencer
# It should be loaded from the step_sequencer repl using pry's `play` command, 
# e.g. `play song.rb`

Player = StepSequencer::SoundPlayer
Builder = StepSequencer::SoundBuilder

DrumsPlayer = Player.new %{
  "Symbol.mp3",
  "Hat.mp3",
  "Snare.mp3",
  "Kick.mp3"
}

BassPlayer = Player.new Builder.build(
  sources: ["middle_c_bass.mp3"],
  effect: :Scale,
  args: [{scale: :equal_temperament}]
).first.first(6)

LeadPlayer = Player.new Builder.build(
  sources: ["middle_c_lead.mp3"],
  effect: :Scale,
  args: [{scale: :equal_temperament}]
).first.first(6)

DrumsRiff1 = <<-TXT
x _ _ _
_ x x _ _ x x _ x x _ x _  _x _ x x
_ _ _ _ x _ _ _ _ _ _ _ x _ _ _ _ _ 
x _ _ x _ x _ x _ _ x _ _ x _ x _ _ 
TXT

BassRiff1 = <<-TXT
_
_ _ _ _ _ _ _ _ _ _ x x _ _ _ _ _ _ 
_ _ _ _ _ _ _ _ _ _ _ _ x x _ _ x x 
x x x x x x x x x x _ _ _ _ _ _ _ _  
_ _ _ _ _ _ _ _ _ _ _ _ _ _ x x _ _ 
_
TXT

LeadRiff1 = <<-TXT
_
_ _ _ _ _ _ _ _ _ _ x x _ _ _ _ _ _ 
_ _ _ _ _ _ _ _ _ _ _ _ x x _ _ x x 
x x x x x x x x x x _ _ _ _ _ _ _ _  
_ _ _ _ _ _ _ _ _ _ _ _ _ _ x x _ _ 
_
TXT

Riff1Reps = 2
Riff1Length = 18

DrumsPlayer.play string: DrumsRiff1, limit: (Riff1Length * Riff1Reps)
BassPlayer.play string: BassRiff1, limit: (Riff1Length * Riff1Reps)
LeadPlayer.play string: LeadRiff1, limit: (Riff1Length * Riff1Reps)

sleep while [DrumsPlayer, BassPlayer, LeadPlayer].any? &:playing
  
DrumsRiff2 = <<-TXT
_
_ _ x x _ _ x x _ _ x x _ _ x x
_ _ _ _ x _ _ _ _ _ _ _ x _ _ _ 
x _ _ _ _ _ _ _ x _ _ _ _ _ _ _ 
TXT

BassRiff2 = <<-TXT
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
x _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ x _ x _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ x _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ x _ x _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ x _ _ _ _ _ x _ _ _ _ _ _ _ _ _ x _ _ _ _ _ x _ 
_ _ _ _ _ _ _ _ _ _ _ _ x _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ x _ _ _ 
TXT

LeadRiff2 = <<-TXT
_ _ _ x _ _ _ _ _ _ _ x _ _ _ _ 
_ _ _ _ x _ _ _ _ _ _ _ x _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
TXT

Riff2Reps = 2
Riff2Length = 18

DrumsPlayer.play string: DrumsRiff2, limit: (Riff2Length * Riff1Reps)
BassPlayer.play string: BassRiff2, limit: (Riff2Length * Riff1Reps)
LeadPlayer.play string: LeadRiff2, limit: (Riff2Length * Riff1Reps)

sleep while [DrumsPlayer, BassPlayer, LeadPlayer].any? &:playing