I have no idea what u all are so confused about...totally separate from that thought-
Those duo electric shows will be RIDICULOUS.  We have seen a few minutes of it here and there but never a full on set of Grace ramping up the V on a solo mission.  Don't rule out the acoustic guitar or a piano here and there, but they have made their intentions clear.  Nbtw, put ur head down, watching u...u do the math.