Traditional Melanesian music in Solomon Islands includes both group and solo vocals, slit-drum and panpipe ensembles. Bamboo music gained a following in the 1920s. In the 1950s Edwin Nanau Sitori composed the song "Walkabout long Chinatown", which has been referred to by the government as the unofficial "national song" of the Solomon Islands. Modern Solomon Islander popular music includes various kinds of rock and reggae as well as ''island music''.