Discern is an original Phish composition that has been performed 4 times since its debut on July 8, 2003 at Coors Amphitheatre. It has been played at 4 different venues, with the longest known version lasting 10:55. The current gap is 762 shows since the last performance. On average, it appears every 6 shows. This song is currently considered a bustout candidate due to an unusually long gap.