Jerome and Radio M host Tony Sarabia revisit two “Musical Show and Tells,” in-studio performance chats with local musicians who play a global instrument. Back in August, Iranian-American Mehran Jalili showed off his blend of flamenco guitar and Persian rhythms. Last fall, Felipe Fraga gave a lesson on the cuica, a curious Brazilian drum that produces a sound similar to a dog’s whimper…in a good way.