dear David,
it is surprising me that there is gadung melati in bali. surprising because as I heard before, gadung melati musical composition is quite new. it was compossed during pakubuwono IV era (1768-1820). so, if there is gadung melati in bali version, it should have been existed long before Pakubuwono IV (for instance it has been existed since Majapahit era).
according to wearing or unweiring keris? David, in that youtube I think it was still in rehearsal. Even only rehearsal, they tended to play very carefull compared with balinese music as usual. from this youtube I have broader information that gadung melati is exist not only in Jawa, surakarta especially, but also in Bali island.
perhaps if any kerislovers are able to upload in youtube gadung melati javanese version?
finally, David, what information I shared as I said is still debatable. However, even it is still debatable, I think it is interesting
And who knows in this forum there will be clearer information/understanding.
warm salam,
OeS