Source : Webster's Revised Unabridged Dictionary (1913)

Pastorale \Pas`to*ra"le\, n. [It.]
   1. (Mus.) A composition in a soft, rural style, generally in
      6-8 or 12-8 time.

   2. A kind of dance; a kind of figure used in a dance.

Source : WordNet®

pastorale
     n : a musical composition that evokes rural life [syn: {pastoral},
          {idyll}]
     [also: {pastorali} (pl)]