 Traditional square dance is almost always danced to live music.Since the 19th century, much of the square dance repertoire has been derived from jigs and reels from Scotland and Ireland, sometimes in relatively unaltered form, sometimes as played in the old time music tradition or as adapted by other cultures such as that of Quebec.This sort of music is played on acoustic instruments, such as the fiddle, banjo, guitar and double bass; certain instruments, including the piano, accordion, concertina and hammered dulcimer, are popular in specific regions.