As you say, it sounds like a GCF triple row, played in D.

Further affiant sayeth naught. (I haven't tried to play it, so I don't have anything else to add.)

This is the way I hear it workrd out on an IPAD with triple row app.

2,3/1,5/1,7 pull to 1,456 push or

easiest 1/567 pull to 1/456 push

the lick is 2,7 1,7 1,6 2,7 1,7 1,6 1/7

thanks yall.