Bougainville is an autonomous area of Papua New Guinea. Autonomous since 2000, it voted for independence in 2019, which is scheduled to be obtained before 2027.
The anthem of the autonomous territory was adopted in 2018[1] and will most likely be adopted as the new nation’s anthem once independence is achieved. Titled “My Bougainville”[2], the melody is that of the Australian patriotic song “The Song of Australia” (one of four songs considered on a national plebiscite for that country’s anthem, but was rejected), the lyricist is unknown. It is not uncommon for anthems in the Pacific region to use the tune of a patriotic song or hymn of a current or former colonizer (as evidenced by the “Pacific hymn” genre of anthems); Australia governed Bougainville as a part of Papua New Guinea from after World War I to Papua New Guinea’s independence in 1975.
Sources:
[1] “Bougainville Flag, Emblem and Anthem (Protection) Bill 2018,” Autonomous Bougainville Government, accessed February 26, 2022, https://www.abg.gov.pg/uploads/acts/Bougainville_Flag,_Emblem_and_Anthem_(Protection)_Bill_2018_-_Explanatory_Note.pdf.
[2] “Bougainville Flag, Emblem and Anthem (Protection) Act 2018,” Autonomous Bougainville Government, accessed February 26, 2022, https://www.abg.gov.pg/uploads/acts/18-03_Bougainville_Flag,_Emblem_and_Anthem_(Protection)_Act_2018.pdf.
Special thanks to: Keith Terrett for the music file.