Slip jig

Slip jig (Irish: port luascach, port luascadh) refers to both a style within Irish music, and the Irish dance to music in slip-jig time originating from England. The slip jig is in 98 time, traditionally with accents on 5 of the 9 beats — two pairs of crotchet/quaver (quarter note/eighth note) followed by a dotted crotchet note.

The slip jig is one of the four most common Irish stepdances, the others being the reel, the jig and the hornpipe. It is danced in soft shoes. At one time only men danced it, then for several decades only women, and today slip jigs can be danced by any dancer, though at a competitive level they are almost exclusively danced by women. This dance is graceful and controlled, with heels very high, often called "the ballet of Irish dance". There are also traditional Irish céilí dances which are slip jigs, though these are much less common than reels and double jigs.