{"codelist_number":17,"code_value":"A31","description_en":"Book and lyrics by","description_fr":"Livret et paroles de","description_es":"Libreto y letra de","notes_en":"Author of the textual content of a musical drama: see also A04 and A05","notes_fr":"Auteur du contenu textuel d’un drame musical : voir aussi A04 et A05","notes_es":"Autor del contenido textual de una obra musical. Ver también A04 y A05","introduced_in_issue":0,"modified_in_issue":null,"deprecated_in_issue":null}