Which preposition to use with rossini

as Occurrences 1%

Infinitely bored by the whiskerless attaché, who had entered upon a disquisition on the genius of Rossini as compared with this new man Meyerbeer, her ladyship made believe to hear, while she listened intently to the confidential murmurs of the group on the hearthrug, the little knot of personages clustered round Lord Denyer.

from Occurrences 1%

It was only after dinner, in the drawing-room, while musicians discoursed Offenbach and Rossini from behind a screen of fern and flower, that Vassili found an opportunity of addressing himself directly to Etta.

Which preposition to use with  rossini