Ring, ring! Before my group can play tonight, we need to get together with you to figure something out.
Our gig is the top space in the region, but now they claim there isn't room for all 16 of us. Can you scope it out?
Then, after that, can you tell us who should stand by whom?
A number of us (four, in fact) are afraid of being observed by the audience, but the rest of us aren't as shy. Hope this is all the info you need!
The four lines above simultaneously describe a common puzzle type and give the clues necessary to solve the puzzle.