Laurie Anderson scored an improbable hit in the early ‘80s with the atmospheric O Superman, a song that appears near the end of this exhaustive two-disc live set. Despite a new arrangement, the track sounds just as entrancing as it did 20 years ago, if only because the 90 minutes leading up to it features some of the most complex, dreamlike, and unnerving music ever produced. But given that these concerts were recorded just days after the September 11 attacks in New York, the effect is all the more chilling--just try to hold back the goose bumps when Anderson sings, Here come the planes / Theyre American planes / Made in America. The air of intensity is palpable throughout Live at Town Hall, as Anderson pulls out vintage pieces like Let X=X and Strange Angels, each one taking new shape and meaning in the process. It is a harrowing listen.