Really excellent, Ian! Although Yamaha arrangers have long had the "stop accompaniment" feature (which allows you to play arranger chords in a left-hand voice with automatic root bass), this goes waaay beyond that! There is none of the awkward silence between chords, and all chord types are available. Your Freestyle is great for traditional liturgical music, or really any song where there is no well-defined rhythm.
IMO, Yamaha is missing a market opportunity by not making "Ethereal Movie" and similar styles available for purchase. Thanks so much for sharing this! -Ted