public boolean containsChord(Chord chord) {
		// Check for tonic
		if (tonic.equals(chord)) {
			return true;
		}
		
		// Check all the subdominant chords
		for (int indx = 0; indx < subdominant.length; indx++) {
			if (subdominant[indx].equals(chord)) {
				return true;
			}
		}
		
		// Check all the dominant chords
		for (int indx = 0; indx < dominant.length; indx++) {
			if (dominant[indx].equals(chord)) {
				return true;
			}
		}
		
		return false;
	}