(Choral Collection). Singing rounds have always been an effective way to teach beginning harmony to singers of all ages. As a follow-up to his successful Pop Rounds for Choir, Roger Emerson has created an exciting collection of Rock Rounds for Choir with songs from Sly and the Family Stone, Panic! at the Disco, Avicii, The Beatles, Ray Charles and more! Each song offers a variety of round options incorporating familiar verses and choruses.