Don: Take 6 was a gospel/jazz sextet, which may explain that little mystery. Their eponymous first album (1988) won a Grammy, and deservedly so, and immediately put them into the same league as Singers Unlimited, Manhattan Transfer, New York Voices and Voicestra. For guys so young not only to sing so well but to write such amazing arrangements must've made even Gene Puerling and Bobby McFerrin jade-green with envy!

That said, I can only recommend their first two albums, Take 6 and So Much 2 Say--after that, they took a more mainstream, instrument-supported direction that detracts greatly from their vocal strengths. But I recommend those first albums with hoots and waving arms and even a little rabid dribble.