Old-fashioned music halls were popular entertainment venues in the 19th and early 20th centuries. They featured live music, comedy, and other performances. The term 'odea' is derived from the Greek word for 'SONG, ' and was used to refer to these venues. Odea were typically large, ornate buildings with balconies and boxes, and were often located in the center of a city or town. They were a popular form of entertainment for many people, and were often associated with the working class.