There are a couple of things I'll have to have ready to go before I can even ask. One is absolutely knowing the piece I want to play. Another is having a backup piece to play to an acceptable level. I'll also need a "camera man" for action shots while I'm playing rather than just a static recording.
Once I have those ducks lined up, I can ask about playing on their piano. Hopefully it's available for anyone to use at any time.