Lilacs for voice and orchestra (or Lilacs) is a musical composition by George T. Walker, Jr. (born 1922) that was awarded the 1996 Pulitzer Prize for Music. The work, scored for soprano soloist and orchestra, was the unanimous choice of the Pulitzer prize jury. Walker was the first African-American composer to be awarded the prize.
There was no other choice for the 1996 Pulitzer Prize for Music than George T. Walker Jr.
The statement says the choice to give George T Walker Jr the prize was unanimous meaning there was no other choice.