Sokratis is correct. Ketron provides (via style compiler) ways to use the AUDIO guitar with Intro and Ending (in particular those that have chord changes within them such as Intro/End 2 and 3), and as such, have the LIVE GUITARS change chords automatically within the Intro/Ending ... as if you were playing through them.
Don't forget as well that this can also be applied to the ARRANGER D (in RIFF MODE) (Check RIFF box in Style Compiler so AUDYA knows it has to change the chords automatically using provided Midibase table and not wait for User input as it does in Arranger A-C).
Thanks,
AJ