Arlesheim (Swiss German: Arlese) is a municipality in the district of Arlesheim in the canton of Basel-Country in Switzerland. Its cathedral chapter seat, bishop's residence and cathedral (1681 / 1761) are listed as a heritage site of national significance.The cathedral has a Baroque organ built by the German builder Johann Andreas Silbermann, based in Alsace, in 1761. The instrument was restored by Metzler in 1959-62, and is an example of the fusion of French and German organ building styles.