How does "human plurality" relate to the music?

It’s a concept unique to the Mehinaku Indians, and expresses their understanding of humanity and their interaction with the outside world. For them, music is a perfect expression of this plurality: they consider every sound to be music – every stone falling, every arrow cutting through the air. There is no distinction between life and music.

To hear samples from the album 'Neuneneu'
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‘Neuneneu’ is the Mehinaku (inhabitants of the Central Brazilian Amazon) expression meaning ‘human plurality’. It is a unique concept of these people and goes some way to expressing their particular understanding of humanity and their interaction with the outside world.
There is no greater expression of this concept and of their spirituality than through the music generated by these extraordinary people. For this indigenous race, every single sound is considered music – a stone rolling or an arrow cutting the air. Sound is directly related to spirituality. There are no boundaries between real life and music. They are one.
Assembled together for the first time on a British stage, a group of five Amazonian Indians, resplendent in native costume, will perform specially composed pieces of music together with the consummate interpreter of Brazilian Indian music, Marlui Miranda, alongside the British virtuoso kora player Ravi.
The Brazilian composer, musician and singer Marlui Miranda has devoted her career to the study, research and development and protection of the Brazilian indigenous race.

Ravi