"Atomd:Say you just have to have a whole bunch of harmonicas ready to go at any moment, but at the same time there was a chance of being shot....that vest would be perfect!"
Pure gold lolol.
As most others have said, an actual MOLLE vest so you could put various pouches, slings etc, would be more useful. I have some generic non-modular tac-vest I use when doing day hikes. It has alot of different sized pockets though. Food, lots of water, sunscreen, bugspray, map, compass, sunglasses etc. All of it fits decent enough, but that one with all the mag pouches wouldn't be much good except for the aformentioned harmonica salesman.