The Corelli cadence, or Corelli clash, named for its association with the violin music of the Corelli school, is a cadence characterized by a major and/or minor second clash between the tonic and the leading-tone or the tonic and supertonic. The cadence is found as early as 1634 in Steffano Landi's Il Sant'Alessio[1] whereas Corelli was born in 1653. It has been described as cliché.[2]
This is created by the voice leading concerns of modal music, specifically the use of anticipation during cadences.[3] The English cadence is another "clash cadence".