The Greek modes refer to the scales used in ancient Greek music. They have been studied and analyzed extensively by music theorists and historians. Synonyms for the Greek modes could include the Aeolian mode, Dorian mode, Ionian mode, Locrian mode, Lydian mode, and Phrygian mode. These modes were created using different combinations of intervals and were associated with different emotions or moods. Understanding the Greek modes helps with understanding the evolution of music theory and the historical context in which certain musical traditions were developed. Today, these modes are still used in various forms of music, including jazz and rock.