What makes Mar Azul by Cesária Évora notable?

'Mar Azul' significantly contributed to the world music scene, earning Évora critical acclaim and leading to a Grammy nomination. Its success helped popularize morna music internationally, influencing numerous artists and expanding the appreciation for Cape Verdean culture. Released in 1991, 'Mar Azul' was Cesária Évora's international breakthrough album, marking her first significant exposure outside of Cape Verde. This record came after she had been performing locally for over two decades, bringing her unique sound to a global audience for the first time.