in the 19th and 20th centuries, organ builders began to build instruments in concert halls and other large secular venues, allowing the organ to be used as part of an orchestra, as in saint-saëns' "symphony no. 3". frequently the organ is given a soloistic part, such as in joseph jongen's "symphonie concertante for organ & orchestra", francis poulenc's "concerto for organ, strings and tympani", and frigyes hidas' organ concerto.