Minuteflag was an experimental jam band collaboration between members of the Minutemen and Black Flag. Their only release, an EP, consists almost entirely of instrumentals with the exception of "Fetch The Water" which features D. Boon on lead vocals.
It took place in March 1985, while Black Flag was in the process of writing and recording "Loose Nut" at Total Access Studio in Redondo Beach, CA; the Minutemen had just completed their Project Mersh 12" EP at the same studio the month before. The members involved initially agreed that the material recorded during the Minuteflag sessions would not be released until at least one of the bands had disbanded. The wait would prove to be sadly short; a 12" EP on SST Records as SST 050 came out over a year afterward, by which time The Minutemen had disbanded after the car crash death of guitarist/vocalist D. Boon; Black Flag themselves would split up later in 1986. (From Wikipedia)