👉 The term "cothurnni" is a term used in the context of music theory. It refers to a specific type of chord progression, which involves using the notes of an altered Dorian mode (Dm) as well as the notes of an altered Amorian mode (Am). The phrase "cothurnni" likely comes from the fact that this particular type of progression is often used in traditional music and is known for its complex melodic lines.