Looking around on the Internet I found that Beka Records supposedly only lasted from 1903-1925. This advertisement from Vietnam, however, dates from the 1930s. The “1930” on the image is when I believe it was drawn, but I seem to recall that I found this in a journal from a later year. The text at the bottom says that “I prefer to only listen to Beka records.” The 1930s is when Vietnamese started to make Western-style popular music. Prior to that time they were exposed to Western music through various means, both from performances and recordings.