The Piano Building was built as a wool warehourse in 1867 by Brintons. The north wall followed the curve of the historic "Sling" cart way. From above the building resembles a grand piano. In 1878 it was gutted by fire and rebuilt. For many years an arm of the canal passed under the towpath into the building, bringing coal to the nearby boiler house and bales of wool for the store. The bales were unloaded by hoist to the levels above through hatches cut into the timber floors. After Brintons withdrew carpet manufacturing from the town centre 1995 - 2000, the building was saved from demolition by listing in 2003.