Recent conflicts and rural to urban migration that reduced the population of the region and changes in ways of life have caused a sharp decrease in the number of performers, resulting in the loss of many archaic styles and genres of solo singing.

UNESCO: CULTURE

In which a small number of elders hold the power to rate performers of their arcane craft, trained as they have been in various schools of theory and practice.

FORBES: Big Elections East and West!

It's never wholly clear what makes the difference between a Frank Sinatra and Joan Sutherland and any number of completely capable and fully engaged but decisively not comparable other performers of the same music.

FORBES: Magazine Article

The "Reincarnated" album features a number of guest stars, including Jamaican performers Mavado and Mr. Vegas.

WSJ: Snoop Bounces to Different Beat With 'Reincarnated' Projects

Players nominated for the Discovery of the Season award must be 21 or under on the date of the Premiership final to qualify, ruling out a number of this season's impressive young performers.

BBC: Northampton & Saracens dominate player award shortlist

The past half-century has seen an increase, in number and in prestige, of artists as conceptual performers: people who chiefly do things, whatever their auxiliary output of pictures and objects.

NEWYORKER: For Laughs