| From barbershop quartets to gospel close-harmony groups to doo-wop to the kooky a cappella experiments, vocals-only pop music has a long history. |
| Brady Johnson has been singing in gospel quartets for many years and is a member of the Muddy River Quartet. |
| These include lieder, thirty string quartets and six symphonies, plus numerous overtures and choral works. |
| However, it is not a complete cycle, for it was recorded before Shostakovich had composed his 14th and 15th quartets. |
| Over the years, he has led big bands and played with trios, quartets, and other types of groups as well as playing solo. |
| This quartet is musically closer to the quartets of fellow Theresienstadt composers Ullmann and Schulhoff. |
