Yes Tony, I remember working with the Korg UNPLUGGED styles when I rented the 600.
A while back Henni posted some style conversions and I got really excited because all the Korg styles were there, Unfortunately they were not really useable on my Yamaha. They had too many glitches.
Those songs you mentioned feature "augmentation" and augmented chords are shown like G+
God Bless,
Don
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God Bless,
Don