Ear training level 7 – 9: The chords are listed as the dominant 7th (major-minor7th). Level 10 also has a major-major 7th and a minor -minor 7th. What exactly are these referencing? I am a jazz player and my idea of a dominant 7th is C-E-G-Bflat, Major 7th chord is C-E-G-B, minor 7th chord is C-Eflat G-Bflat, what exactly is a Major-major 7th and a minor-minor7th and a major-minor 7th chord?