This Philadelphia-based dance company is committed to making dances spontaneously, rigorously, in collaboration, and in connection with the moment. City Paper has described Stein's work as "extremely tactile, with an ever-present passion for exploration" noting that she often redefines "the space between stage and audience." Stein frequently creates dances for large outdoor or architectural sites—Bartram's Garden, 23rd Street Armory, and Eastern State Penitentiary, among others—where her sensual, loose style of moving contrasts sharply with the physical edges and parameters of each site. Her choreography is most often engaged with live music-making and her company has commissioned scores from composers including David Lang and Pauline Oliveros.
Leah Stein choreographed a large-scale, site-specific dance to an original score by Pulitzer Prize-winning composer David Lang, performed by 70 singers from the Mendelssohn Club chorus, and shown at Philadelphia's 23rd Street Armory. Stein worked closely with Lang during the development of the score, the libretto of which was based on Civil War texts: Stephen Foster songs, a quote from Abraham Lincoln, and a battlefield letter home, written by Sullivan Ballou. This was the Leah Stein Dance Company's third collaboration with the Mendelssohn Club, directed by Alan Harler, all of which incorporated a full chorus into the choreography. In 2012, the full production of Battle Hymns toured to San Francisco for a performance with 20 professional singers of Volti, more than 100 members from the San Francisco Choral Society, and 50 young singers from the Piedmont East Bay Children's Choir.