Sentence:  ...chanting "Holi kellay ragubeera" together, singing <WSD>chowtal</WSD> after <WSD>chowtal</WSD>, going higher and faster and louder as the dholak drum, played by one of them, twacked and clapped, bursting out in resounding pleasure, pacing the thumping dancing rhythm and the sharp ringing bursts of jaal, the men singing and singing and singing to a strong rising sudden joyous end. 
Meaning of the word marked with <WSD> tags:  An Indian folksong traditionally sung during the Holi festival.