Sentence:  One part of her <WSD>audience</WSD> was totally engaged , the connoisseur witnessing a peculiarly fine performance of some ancient classic , the other part , the guest of the connoisseur , attentive as one who must take an intelligent interest in that which he does not fully understand . 
Meaning of the word marked with <WSD> tags:  a gathering of spectators or listeners at a (usually public) performance