In this Reason project we will create a harmony maker, similar in functionality to the Digitech Vocalist series of harmony makers. The completed effect combinator will accept the audio output of any device and add up to three harmonies that track the key your are in. For example if you are playing in the key of C, you will hear a C major chord if you place a 'C', but an A minor chord if you play an 'A'. Ready? Read on to dive in.