McGrath, I don't think the point of the game is to teach those particular chords, the purpose is to train the ear to hear particular intervals. In the case of the C6, C7, Cmaj7 series, you are listening to a C major triad played consistantly throughout the series with a single moving interval to differentiate the others. It's the interval recognition that's important. Personally, I can't tell a C6 from an Em7. <g>

      - Mark