Dancing With the Stars’ music director and composer, Ray Chew, works closely with the show’s professional dancers to arrange the songs played live in the ballroom each week.

“They’re very specific about a lot of things that they’re looking for,” Chew exclusively told Us Weekly of the DWTS pros on Thursday, October 17. “They may be looking for a little sound that happens [at the] 29 seconds [mark] so they can do a little arm [movement].”