pas·to·rale 
(păs′tə-räl, -răl, -rälē, pä′stə-)
(păs′tə-räl, -răl, -rälē, pä′stə-)n. pl. pas·to·ra·li (-rälē) or pas·to·rales
1. An instrumental or vocal composition with a tender melody in a moderately slow rhythm, suggestive of traditional shepherds' music and idyllic rural life.
2. A dramatic performance or opera, popular in the 1500s and 1600s, that was based on a rural theme or subject.
[Italian, of herdsmen, pastorale, from Latin pāstōrālis; see PASTORAL.]