Nice tie....
I play bass guitar also, but my bass is an Ashbory, with silicone rubber strings. They are way too thick, even for a saltwater fly. Regular bass strings??? I dunno...maybe you could tow a car or boat with them????
As I said earlier, you can use the 1st (E), and 2nd (B) steel strings (or bronze) to make wire leaders and weed-guards. I am sure any guitar player would be happy to donate old strings to any non-musicians who wanted them. I go through more strings than I could ever tie flies on. So far, it looks like one nylon string will make about 12 medium (6-10) size streamers, and probably even more smaller nymph-size flies.