SATB or SAB and piano, with optional flute. The lilting melody and triple meter give "There's a Song in the Air" a tender quality that is enhanced by Ruthie's setting, which is full of lovely harmonic nuance. The text images are sheer poetry, focusing on the nativity and the message that Mary's babe is King of kings. The flexible voicing makes it easily prepared for Christmas Eve, Christmas, or Christmastide.