An actual “Heuristic Gag Factor” is something that would teach through the experience of gagging, like, for instance, watching the entirety of The Adjustment Bureau. This track by Laurel Halo is a bit tongue in cheek, because it's sublimely un-gagworthy, and indeed, it's more likely to relax that larynx than cause you to heave anything up it.
The track comes off a new NNA tape called Antenna.
Laurel Halo's Antenna track list:
02 Dia Sapiens
03 Zoo Hypothesis
04 Heuristic Gag Factor
05 Strength in Free Space
06 Factory Reset