Why is drone polyphony considered an indigenous feature of Polynesian music?

Drone polyphony is considered an indigenous feature of Polynesian music because it was documented by 18th-century explorers during a period when foreign influence had not yet significantly impacted local musical styles.1

Authorities in the field agree that this form of drone—where a second vocal part follows the melody rhythmically while repeating a basic tone—is a precontact element of the region's musical tradition. While other forms of polyphony, such as imitational counterpoint, are often attributed to European influence, the widespread presence of drone polyphony across most Polynesian groups (with the notable exceptions of the Maori and Hawaiians) confirms its status as an authentic, indigenous characteristic.1