an Entity references as follows:
Filippo Filippi (13 January 1830 – 24 June 1887) was an Italian music critic. He wrote for the Milanese music magazine La perseveranza, and was an admirer of and frequent correspondent with Giuseppe Verdi. Verdi was warm in his relations with Filippi, but resisted some of Filippi's suggestions to adopt some of the stylistic innovations of the Germans, especially Wagner.