require 'mtk'
require_relative 'helpers/output_selector'
include MTK
include MTK::Core
output = OutputSelector.ensure_output ARGV[0]
def get_pitch_classes
puts "Enter pitch classes:"
input = STDIN.gets
input.strip.split(/\s+/).map{|name| PitchClass[name] } if input
rescue
puts "Invalid input."
end
while (pitch_classes = get_pitch_classes)
sequence = Patterns.Sequence pitch_classes
sequencer = Sequencers.StepSequencer sequence
timeline = sequencer.to_timeline
puts "Playing: #{pitch_classes}"
puts "Timeline:\n#{timeline}"
output.play timeline
end