I’m also a musician, but I possess several weapons- bow, crossbow, multiple firearms, throwing knives, the likes- and I can use them. I’m a small teenage girl, but am I more useful than that last musician? :3
During the zombie apocalypse we’d take musicians over militants any day. The reason:
Anyone can learn to eliminate zombies. Not everyone is a talented musician.
During the inevitable zombie apocalypse, as with real life:
Art > Guns.