A lot of music reminiscing on RMN uses songs you know, and rarely goes out into left field. For a surprise here is a Tuvan tongue-twister of a song:

Fast Talk by Kongar-ol Ondar & Paul 'Earthquake' Pena:

Although Durgen Chugaa (Fast Talk) lyrics are available, good luck in faithfully using the Tuvan jaw harp while singing a chunk of syllables in one breath. This is from the 1999 Oscar nominated film, Genghis Blues with the blind blues guitar player Paul Pena:

FYI: Paul Pena passed away in October 2005, and Kongar-ol Ondar passed away in July 2013.

You won't forget Tuvan throat singing when a woman uses a lower register:
Female Mongolian Throat Singer

This song, Breathless by Shankar Mahadevan, was engineered to sound as though it's sung in one breath.

The Jewish religion has its one breath concept in their songs/prayers (Lo Ava, Chad Gadya, etc.)

Sometimes it's good to search outside your world and find talents in other countries.