In August 1928 representatives from the German record companies Odeon and Beka were sent to Bali; their efforts resulted in 98 recordings on 78 rpm discs of a wide variety of examples of Balinese music.
As it happened, at that time Bali was undergoing an artistic revolution. A new style known as kebyar was rapidly gaining popularity, and older ceremonial styles were literally disappearing, as their bronze instruments were melted down and reforged to accommodate the new style’s requirements; the Odeon/Beka recordings preserve several musical traditions that were later lost.
These were the recordings that inspired the young Canadian composer Colin McPhee, who first heard them in 1929. McPhee went to Bali in 1931 and remained there for nearly a decade; his activities included making painstaking transcriptions of Balinese pieces.
This according to the commentary by Edward Herbst that accompanies the CD The roots of gamelan: The first recordings—Bali, 1928; New York, 1941 (World Arbiter, 1999).