Originally Posted by: renyep - diad is the correct term... but you don't hear it very often....

Diad eh? Must remember that one. I'm not so hot on the names of stuff, my Jazz theory teacher in particular doesn't tell us names for too many things. I remember the term 'Neopolitan Chord' came up recently in these forums and it puzzled me until I looked it up and found it was just another name for something we've studied in jazz theory.