Wikipedia says "A cappella (Italian for "in the manner of the church" or "in the manner of the chapel") music is specifically solo or group singing without instrumentalsound, or a piece intended to be performed in this way.
This group is for those of us who enjoy singing worship and praise songs with a focus on the lyrics and harmonies of our voices on key or not, blending to honor our Creator and our Savior. So no matter what voice you have been given you have a part in the harmonies of worship.
One of the beauties of singing is the simplicity. All you need to bring is your voice and you can take it anywhere... and everywhere you go you are performing in the presence of a King.