(1): Ein Luftgitarrenspieler wird gesucht?
vs (2): Ein Luftgitarrenspieler ist gesucht?
I wonder if the 1st construction with werden means:
Someone is looking for an air guitarist (perhaps, in order to have him strut his stuff at a party),
whereas the 2nd construction with sein means:
Air guitarists in general are currently in high demand and sought after.
If so, should the 2nd sentence be converted into a plural structure?