I have an autoharp newbie question: my wife bought me a 'harp at a yard sale, I purchased a set of LaBella strings on eBay - "new, in original bag, no returns" - and they're rusty. Not end to end, but in spots. Can I use them? Should I try oiling them (but not near the ends)? Steel wool? Or is this one of those fun life lessons and I should toss them out?

Thanks!