The musicologist Gustave Reese notes, however, that many Greco-Roman texts can nonetheless be credited as influential to Western classical music, since medieval musicians frequently learn their works—regardless of whether or not they were doing so appropriately. Beginning in the early 15th century, Renaissance composers of the influential Franco-Flemish School built off the harmonic rules helpful site in the English contenance angloise, bringing choral music to new requirements, significantly the mass and motet. Northern Italy soon emerged because the central musical region, where the Roman School engaged in extremely sophisticated strategies of polyphony in genres such because the madrigal, which inspired the brief English Madrigal School.