Sentence:  "Are we having a recording <WSD>session</WSD>?" / "Yes. We've even got some <WSD>session</WSD> musicians to provide some brass." 
Meaning of the word marked with <WSD> tags:  A period devoted to a particular activity, e.g. the annual or semiannual periods of a legislative body (that together comprise the legislative term) whose individual meetings are also called sessions.