A slip-jig is a variant of a jig. Similar to a jig it is based on 3 beats in a bar(3/4 time). Unlike a standard jig which is 6/8 time (6 beats in 2 bars) it is 9/8 time (9 beats in 2 bars). The squeezing of more beats into two bars makes slip jigs sound livelier at times.
Slow base pattern
Fast base pattern