Music of the Channel Islands for hundreds of years. Song in Jèrriais celebrates the language and its survival. Songs derived from French mark geographic identity and proximity to France, while songs derived from the UK and Ireland re-present Jersey's wider heritage. The development of tourism in the 19th century brought a demand for dance music in tea-rooms and hotels. Some local composers supplied songs and sheet music aimed at a tourist market. Claude Debussy composed part of "La Mer" in Jersey. John Ireland settled for a time in Guernsey. The Channel Islands Music Council was founded in 1974 to promote music in the islands. In
Law of Guernsey the sale and purchase of real estate in Guernsey were written in French until 1971. Alderney enjoys full autonomy in law (except in matters of foreign affairs and defence, as the other Channel Islands); however, in 1948 Alderney adopted a new constitution which created a fully elected government and changed the courts. Under the terms of an agreement (known as "the 1948 Agreement") entered into between the Government of Alderney and the Government of Guernsey, certain matters were delegated to Guernsey. These are known as "the transferred services" which include policing, customs and excise, airport operations, health, education and social