array(5) {
  [1]=>
  string(6) "Caplet"
  [2]=>
  string(8) "Koechlin"
  [3]=>
  array(2) {
    [0]=>
    string(6) "Ligeti"
    [1]=>
    string(16) "Olivier Messiaen"
  }
  [4]=>
  string(7) "Debussy"
  [5]=>
  string(11) "Lutoslawski"
}