written-by, producer Robert Fripp
From Polydor album PD-1 6266

Some copies have both sides with identical labels indicating a LONG version, although one does indeed have an edited version, and LONG and SHORT are specified in the deadwax.
Matrix / Runout: PRO - 126-80 - NP - 4949 - S - LONG PW
Matrix / Runout: PRO - 126-80 - NP - 4949 - S - SHORT - PW