In answer Boris showed his sketching folio; then he would play her quadrilles, mazurkas, excerpts from opera, and finally his own improvisations.

作为回答，鲍里斯出示了他的速写本。 然后他会演奏她的四重奏、马祖卡、歌剧选段， 最后是他自己的即兴创作。