This work contains the following individual pieces:
Array ( [_edit_lock] => Array ( [0] => 1599206687:1 ) [_edit_last] => Array ( [0] => 1 ) [wikipedia] => Array ( [0] => https://en.wikipedia.org/wiki/%C3%89tudes-Tableaux,_Op._39 ) )
Array ( [_edit_lock] => Array ( [0] => 1599206687:1 ) [_edit_last] => Array ( [0] => 1 ) [wikipedia] => Array ( [0] => https://en.wikipedia.org/wiki/%C3%89tudes-Tableaux,_Op._39 ) )