I guess I'm old school. My backup for my PSR-3000 is an identical PSR--3000. If the keyboard were to drop dead on the job, which has never happened, I guess I could get by with the laptop.
Cheers,
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)