How do panpipe players in Central and South America use interlocking performance styles?

In Central and South America, panpipes are typically constructed in two rows and are designed to be played as a pair by two performers using an interlocking performance style.1

By alternating their notes, the two players create a single, continuous melodic line, a technique that produces a dense sound quality highly valued by native Andean communities. This collaborative approach is essential to the music of the region, where panpipe ensembles may consist of as many as 50 players performing together in this interlocking fashion, often accompanied by large double-headed drums.2