Serafino III : the Serafino’s music

It is hard to say whether the lyre metaphor is merely a poetic image, or the expression of a performance of poesia per musica, with a lira or a lute. What is a cantore al liuto ? A citharedo ? a frottolist ? a poet ? a musician ? an improviser? To be cantori al liuto, Tromboncino and Marchetto Cara were musicians above all, when Serafino was first and foremost a poet.