Her ten-player ensemble, which includes Stewart, Good, clarinetist Jason Stein, saxophonist Gerrit Hatcher, trombonists Riley Leitch and Nick Meryhew, tubaist Beth McDonald, bassist Zach Moore, and cellist Dorothy Carlos, will disperse throughout the station’s Great Hall to play a composition that will enable intentional and inadvertent listeners to experience a onetime juxtaposition of planned and incidental sounds.