[Steve B.]

In the meantime, you can always share the new song/setlist via bluetooth "at the venue". This wouldn't require any wifi network, just what you are already using for master/slave.

Yes, the file could be sent to another user via Bluetooth.
But then they have to futz around importing it and setting the various parameters like setlist, genre, etc.
What I was envisioning was that the song(s) could be sent with all those parameters already set, and the receiving device would be ready to go immediately.

Not something I would likely need or use, but I do see how others might benefit in a pinch.