the "total dropout of the audio loop" has me worried too Diki, and AJ, Ketron

i would want, or shall i say expect that the AUDYA play Maj, Min, 7th, Dim, Aug, Sus ALL with Audio loops

and then if need be, a 6th, 9th, 11th, 13th etc... introduce that one "missing note" via midi guitar note while continuing to play the Audio Loop

playing a C one measure with audio guitar loop, and then next meaure playing a C Aug, and having AUDYA stop playing audio and switch to total midi, and then playing a Dm, and AUDYA going back to Audio loop seems that it would be QUITE noticeable, at least to MY ears.