
Italian composer, violinist, and organist.
    He assisted his uncle, Lelio Rossi, at the Cathedral of S.
    Lorenzo, Genoa, He moved to Rome by 1624 and entered the
    service of Cardinal Maurizio of Savoy, where he met Sigismondo
    d'India; he also studied with 
    Frescobaldi
     around this time. His opera 
    Erminia stel Giordano
    was performed in the theater of the Palazzo Barberini in 1633
    and published four years later; a second opera, 
    Andromeda
    (1638, music lost), was produced in Ferrara. Rossi was famous
    in his time as a virtuoso violinist; his surviving keyboard
    music, especially his toccatas, are stylistically close to
    Froberger and Frescobaldi.