Simple ruby script to randomly show guitar chords on the terminal to assist with learning/practicing

ruby-guitar-chords

# Simple Ruby script to dish out pre-defined guitar chords on the terminal to
# assist with learning

# Change these to the chords you want, notice some chords are in here twice;
# this is so it generates twice as many of them as I am/was finding them the 
# hardest to navigate to on the fretboard.

trap("SIGINT") { throw :ctrl_c }

CHORDS = ["A","B","C","D","E","F","G","Am","Bm","Cm","Dm","Bm","Cm","Dm","B","Fmaj7"]

INTERVAL_BETWEEN_CHORDS = 3 # In seconds

PREPEND_STRING = "Play: " # What to stick on the front of the chord

def chordlooper
  loop do
    if RUBY_VERSION < "1.9"
      puts "#{PREPEND_STRING}#{CHORDS.choice}"
    else
      puts "#{PREPEND_STRING}#{CHORDS.sample}"
    end
    # Wait a bit before the next chord comes up
    sleep INTERVAL_BETWEEN_CHORDS
   end
end


puts "Ready? #{CHORDS.size} randomly picked chords coming up ... Ctrl-C to exit"

catch :ctrl_c do
  chordlooper
end

puts "\nHope that session went well"