John Weeks Moore, Complete Encyclopaedia of Music… (1880)
“ Liberati asserts that Benevoli was superior to his master, and all other composers, in the art of writing fugue and counterpoint for four and six choirs, each of four parts. Dr. Burney cites a mass of this kind, composed by Benevoli, which surpasses, in effect, every thing he had known of the same description. This is probably the mass which Benevoli composed for the cessation of the plague at Rome, for six choirs, of four parts each, the score consisting of twenty-four different parts. ”
