Not so simple if you listen it first time! ^^ (Machaut, Verdi)

Compare medieval Machaut and renaissance Palestrina music here.

Palestrina - smooth melodically and rhythmically, treats all voice parts equally (mostly imitative counterpoint with harmony based on thirds, with careful control of dissonances as passing tines/neighbor notes, suspensions; cadences are overlapping and focused on full triads).

Machaut - not that smooth melodically and rhythmically, independent voices, melodic interest in upper voices, little use of thirds, cadences are clear cut/no overlap; cadences focus on perfect consonances. (Machaut, Palestrina)

One of the simplest islands to start with. Machaut has a very specific medieval vocal sound and Verdi is most known late-romantic opera composer.

Listen to a pair of pieces by these composers before playing if you are not sure. (Machaut, Verdi)