sequentia seh-KWEN-chah Your browser does not support the audio element. [ Latin ] Definition A Medieval term referring to a melody without text, such as the melismatic Alleluia. This term is used in opposition to the term prosa, which is a melody with a text. Share Share on Facebook (opens in a new tab) Share on X (opens in a new tab) Last Updated: 2013-02-14 19:30:34