Why does lenina like the drums even though she doesn’t like anything else

Lenina liked the drums because "It reminded her reassuringly of the synthetic noises made at Solidarity  Services and Ford’s Day celebrations", especially the orgy.

Explanation:

The dystopian world of Aldous Huxley's novel "Brave New World" tells of a fictional world where there is no more pain and suffering. But the flip-side of it is the meaninglessness of life as a whole. Set in a futuristic world of scientifically engineered world, the people in the world are engineered to be free of any emotions and any feeling of identity. rather, the belief system was that everyone belongs to everyone and there is no individuality in it.

Lenina wasn't fond of anything, everything seems to despise her in the Savage Reservation. She especially hates the Indian guide, for he smells a lot. But out of all things, Lenina liked the drums that were playing. She finds it "reassuring[ly] of the synthetic noises made at Solidarity  Services and Ford’s Day celebrations", especially about the orgy that have "the same rhythms".

breathe, think and analyze the situation, pull them aside and talk to them about it