The question of authorship—essentially of how much of the music is Monteverdi's—is a contentious one, which Rosand acknowledges might never be entirely resolved. Virtually none of the contemporary documentation mentions Monteverdi, and music by other composers has been identified in the scores, including passages found in the score of Francesco Sacrati's opera "La finta pazza". A particular style of metric notation used in some passages of the "L'incoronazione" scores suggests the work of younger composers. The most debated areas of authorship are parts of the prologue, Ottone's music, the flirtation scene between Valetto and Damigella, and the coronation scene including the final "Pur ti miro" duet.