In 1951 Tobing left PFN to join Radio Republik Indonesia ( RRI ) , where he remained for four years . Sinondang Tapian Nauli would frequently perform on the radio station during the programmes Panggung Gembira and Sekuntum Melati . In 1953 Tobing travelled with an Indonesian cultural envoy to the 4th World Festival of Youth and Students , held in Bucharest , Romania . At the event he sang " Sinanggar Tulo " and " Embun " , as well as " Rayuan Pulau Kelapa " . He recorded this last song in the USSR , where it became popular . During bus trips with the cultural envoys , he would often begin playing his guitar and call on his fellows to sing . The dancer Irawati Durban Ardjo recalled that this helped both the envoys and local organizing committees develop a sense of intimacy and familiarity
4th World Festival of Youth and Students
4th World Festival of Youth and Students
Gordon Tobing