He concentrated mainly on madrigals, including both canonic (caccia-madrigal) and non-canonic types, but also composed a single example each of a caccia, lauda-ballata, and motet.
[3][2] Jacopo's ideal was "suave dolce melodia" (sweet, gentle melody).
[6][page needed][2] However, the identification of Jacopo as the subject of the painting in the latter source was made by a hand later than the manuscript copyist's, throwing some doubt on its reliability.
[7] In addition to his compositions, Jacopo also wrote a short theoretical treatise, L'arte del biscanto misurato,[8][9] which is influenced by French notational theory.
[2] He may also have been active as a poet, to judge from the autobiographical texts of the madrigals Io me sun un che, Oselleto salvazo, and Vestìse la cornachia.