 Hard shoe dances include the hornpipe in syncopated or time, the treble jig (also called the 'heavy jig' or 'double jig') in a slow , the treble reel (hard shoe dance done to reel music) and 'traditional sets', which are a group of dances with set music and steps.Many traditional sets have irregular musical phrasing.There are also more advanced "non-traditional sets" done by advanced dancers.