“Hallo! Bandoeng!”

Published between 1930–1934, Hallo! Bandoeng! is a musical piece made popular by Dutch singer Willy Derby. The song celebrates the technological milestone of establishing a long-distance telephone connection between the Netherlands and Indonesia via radio telephony. At the time, the transmitter and receiver in Indonesia were located on Mount Malabar near Bandung—hence the song's title. The lyrics and music reflect the excitement and emotional resonance of global communication during the colonial era.