Most of Verdonck's surviving output consists of secular music, and he wrote both French chansons and Italian madrigals. Some of the chansons are for unusually large groups of voices (for example, his publication "Poésies françaises de divers autheurs mises en musique par C. Verdonck" of 1599 is for 10 independent voices), and the texture of his music is mostly contrapuntal, with sometimes lively syncopation. One of his madrigals, "Donna belle e gentile", fitted with English words (as "Lady your look so gentle"), appeared in the 1588 "Musica transalpina" collection by Nicholas Yonge which inaugurated the madrigal vogue in England.