A cappella may have roots in old-fashioned traditions, but today's technology has made a difference in the way the groups operate. Since Duke's dorms have Ethernet access to the Internet, it's easy for students to collect MP3s from other groups, and many student singers have downloaded music.
Listen to one of Duke's vocal groups, The Pitchforks, sing "Good Old A Cappella" on their 1998 CD Tastefully Done. Male harmony sings, "Shoo-bee-doo-wop, bop, bop...