further the plot. Availability of printed or projected translations today makes singing in the original language more practical, although one cannot discount the desire to hear a sung drama in one's own language. The Spanish words libretista (playwright, script writer or screenwriter) and libreto (script or screen play), which are used in the Hispanic TV and cinema industry, derived their meanings from the original operatic sense. Status Librettists have historically received less prominent credit than the composer. In some 17th-century operas still being performed, the name of the librettist was not even recorded. As the printing of libretti for sale at performances became more common, these records often survive better than music left in manuscript. But even in late 18th century London, reviews rarely mentioned the name of the librettist, as Lorenzo Da Ponte lamented in his memoirs. By the 20th century some librettists became recognised as part of famous collaborations, as with Gilbert and Sullivan or Rodgers and Hammerstein. Today the composer (past or present) of the musical score to an opera or operetta is usually given top billing for the completed work, and the writer of the lyrics relegated to second place or a mere footnote, a notable exception being Gertrude Stein, who received top billing for Four Saints in Three Acts. Another exception was Alberto Franchetti's 1906 opera La figlia di Iorio which was a close rendering of a highly successful play by its librettist, Gabriele D'Annunzio, a celebrated Italian poet, novelist and dramatist of the day. In some cases, the operatic adaptation has become more famous than the literary text on which it was based, as with Claude Debussy's Pelléas et Mélisande after a play by Maurice Maeterlinck. The question of which is more important in opera – the music or the words – has been debated over time, and forms the basis of at least two operas, Richard Strauss's Capriccio and Antonio Salieri's Prima la musica e poi le parole. Publication Libretti have been made available in several formats, some more nearly complete than others. The text – i.e., the spoken dialogue, song lyrics and stage directions, as applicable – is commonly published separately from the music (such a booklet is usually included with sound recordings of most operas). Sometimes (particularly for operas in the public domain) this format is supplemented with melodic excerpts of musical notation for important numbers. Printed scores for operas naturally