different between qawwali vs qawwals

English

From Urdu ???????, Persian ?, from ? (“qawwal”).

qawwali (countable and uncountable, plural qawwalis)

(music, uncountable) A style of Muslim devotional music, especially among the Sufis, accompanied by drums and harmonium.
- 1994, Simon Broughton, World Music: The Rough Guide:
  Jameela Siddiqi listens to qawwali and talks to its performers […].
(music, countable) A song in this style.
- 1997, Kiran Nagarkar, Cuckold, HarperCollins 2013, p. 223:
  They are singing not a religious qawwali but its secular and lay cousin.
- 2016, Sunil Khilnani, Incarnations, Penguin 2017, p. 86:
  Every Thursday, in the dargah's enclosure, musicians in shimmering turquoise kurtas, their fingers bejewelled with bling, perform qawwalis attributed to Khusrau […].