Cavatina

Cavatina (Italian diminutive of cavata, the producing of tone from an instrument, plural cavatine) is a musical term, originally meaning a short song of simple character, without a second strain or any repetition of the air. It is now frequently applied to any simple, melodious air, as distinguished from brilliant arias or recitatives, many of which are part of a larger movement or scena in oratorio or opera.