 An outright ban on polyphonic music was debated behind the scenes, and guidelines were issued requiring that church music have clear words and a pure, uplifting style.Although the tales of Giovanni Pierluigi da Palestrina "rescuing" polyphony with the "Missa Papae Marcelli" are no longer accepted by scholars, Palestrina's music remains the paradigm of the musical aesthetic promoted by the Church.Shortly afterwards, in 1614, the "Editio medicea" (Medicean Edition) of Gregorian chant was released, rewriting the Gregorian chant repertory to purge it of perceived corruptions and barbarisms, and return it to a "purer" state closer in style to Palestrinian melodies.