Hardcode Airplay Device Speakers
Correspondent Matt Stevens sent the following, which illustrates how to hard code your Airplay device names:
tell application "iTunes"
set computerSpeaker to (first AirPlay device whose name = "Computer")
set kitchenSpeaker to (first AirPlay device whose name = "Kitchen")
set current AirPlay devices to {computerSpeaker, kitchenSpeaker}
end tell
The current AirPlay devices application property accepts a list—even if the list is only one item.