 Early in 1620 Striggio asked Monteverdi to send him the music for a projected performance in Mantua as part of the celebration for the Duchess Caterina's birthday.Monteverdi went to the trouble and expense of preparing a new manuscript with revisions; had he had more time, he informed Striggio, he would have revised the work more thoroughly.Hearing nothing further from the Mantuan court, Monteverdi wrote to Striggio on 18 April 1620, offering to help with the staging.