<p>As a recently inaugurated member of an a cappella group on my campus, i think i can shed some light.</p>
<p>my audition was two rounds (as it is for all of the groups here). The first round I prepared a solo, demonstrated my range, and did this exercise to pick out certain notes in a chord. sort of difficult. </p>
<p>the second audition was a call back, and was much less formal. I sang a little bit more, a new solo and a little more with the group, but other than that it was mostly like an interview. they were gauging personality. most a cappella groups have a certain personality about them, a sense of humor, so i think it is important to visit the websites (if they have them) and to watch them perform at least once before you audition. </p>
<p>it is also important to determine if you want a single-gendered or co-ed group. the sound is different, but both tend to be good options.</p>