(Easy Instrumental Duets). Explore 50 First Duets , the newest addition to the Easy Instrumental Duets series! This collection features easy-to-intermediate arrangements of 50 must-know songs, from "Let It Be" to "Shake It Off," perfect for learning and enjoying music with a partner. Whether playing another violin or a cello, these duets make every practice session more engaging. Songs include: All My Loving * Bad Day * Billie Jean * Chariots of Fire * Easy on Me * Glad All Over * Hey, Soul Sister * Livin' La Vida Loca * A Million Dreams * Popular * Shake It Off * Some Nights * You're Welcome * and more.