每日一题

Writing & Language

The song opens with three drummers tapping their panderos. The largest of the panderos -- a hand drum called the seguidor -- provides the pulse of the music. Two smaller hand drums -- the segundo and the requinto -- weave in and out of that beat. Each pandero adds a layer to the complex, syncopated rhythm the drummers tap out on their panderos. A maraca and an accordion chime in and are soon joined by the ratchet-like scrape of the güiro. Next, the singers pipe up, one calling and two others responding in a playful chant. As the music builds to a crescendo, I detect a twist on the traditional Puerto Rican folk style: a trombone bursts in and then a clarinet. They add an element of big band jazz. Underneath the fused musical styles, though, the classic plena rhythm, propelled by the panderos, beats on.

Which choice adds a new supporting detail most relevant to the main focus of the paragraph?