http://copland.udel.edu/stu-org/deltones/ Coed group with a pop repertoire. Photos, no sound. http://udel.edu/stu-org/dsharps/ All-female group. Sound samples in .wav format. http://copland.udel.edu/stu-org/ychromes/home.html All-male group with a pop repertoire. Sound clips in .wav format.