Solemnisation

solemnisation.rb

funcs = %w(do re mi fa so la si 𝕕o)
# funcs = %w(Do Re Mi Fa So La Si do re mi fa so la si 𝕕o)
intervals = funcs.permutation(2)

puts "Functions count: #{funcs.length}"
puts "Permutation count: #{intervals.to_a.length}"
last = nil
intervals.each do |a, b|
  if last != a then
    last = a
    puts
  end
  puts "#{a} – #{b}"
end