Marsilio Ficino
This highly philosophical "canzone" was extremely influential, and it was commented upon by authors including Dino del Garbo, pseudo-Giles, Giles of Rome, Marsilio Ficino, Pico della Mirandola, Iacopo Mini, and Fracesco de Vieri (see Enrico Fenzi, "La canzone d'amore di Guido Cavalcanti e i suoi antichi commenti", Melangolo, 1999).