Look up: da capo aria

1. da capo aria
   (from the article `aria`) ...and also were longer and in new musical forms, often suggested by the texts. By the mid-17th century a preference for bi-partite (i.e., AB) forms ... ...Consequently, the poems are concise, with each verse typically repeated many times throughout a setting. The structure follows the same designs of ... .....
   Found on http://www.britannica.com/eb/a-z/d/1
   
   
2. Da capo aria
   The `da capo aria` is a musical form, which was prevalent in the Baroque era. It is sung by a soloist with the accompaniment of instruments, often a small orchestra. The da capo aria is very common in the musical genres of opera and oratorio. According to Rendel, a number of Baroque composers (he li...
   Found on http://en.wikipedia.org/wiki/Da_capo_ari