Feet tapping and heads bobbing, juniors Jacob Cupps, Sidney Baker, Alex Hubbard and senior Patricia Busch prepare “Muddy Water” for their Jazz Choir concert Jan. 16. The song was chosen by Director Brian Parrish to show off the range and ability of the group and has been rehearsed since August. “ ‘Muddy Water’ had complicated cords and rhythms, especially for the altos, but the challenge was worth it,” Baker said.