this amazes me, I lived in Bali for 5 years and i agree some gamalon lasts AALLLL day and I never felt any connection to it at all, I have been playing guitar as a main instrument for 40 years and have 'enjoyed' Fripp for nearly as long, have wife from japan and feel sort of close to Asia.., never would I have connected Discipline to gamelon?? (more likely 'Larks Tougue in Aspic' never would I have thought gamelon soothing in any sense.., i thought it was something akin to firecrackers to ward off bad spirits (and anyone else near by.)
I thought Fripp got his rhythmic chops from Bennet at Sorbourne house in england during his stay there in the late 70s (I think).., tapping such madness as 3/4 on his knee.., while nodding in 5/4.., while his other hand is tappind 4/4 and his other foot is tapping 7/8.., Im not joking I am sure I read an interview with him about this years ago
anyway the gamalon.., well it certainly cant be easy to record, its seems a cacophony of sound. I bow down to anyone who could do it successfully