GIOSEFFO ZARLINOZARLINO, GIOSEFFOGIOSEFFO ZARLINO [* 1517-† 1590] At a time when radical experiments in chromatic and enharmonic music and in monody were claiming attention in Italy, Gioseffo Zarlino stood as the chief defender of the polyphonic practice which had evolved over the preceding centuries, culminating, he felt, in the music of his teacher, Adrian Willaert. Another Willaert pupil, Nicola VICENTINO, published L'antica musica ridotta alla moderna prattica, a provocative guide to…