-
You’ve got some great advice in the comments. I personally change them on the guitar I play most often every 2-3 months, because I can tell when they’re losing that tonal value and resonating like I want them to. On the other hand, I have several guitars I don’t play often, but the strings still age and deteriorate over time. I have to change those strings typically every 6-8 months. I agree with @jumpinjeff that you need to have the guitars in a room that is humidity-controlled. I like humidity around 50%, but I’ll accept 40%. Below that, the wood will dry out and shrink, and that affects the strings, as well as the coating on the strings deteriorating faster.
As for what strings to use, it is a personal preference. They all sound different, and I can put the same brand on multiple guitars, and they can all sound different. Play around with it. I bought so many brands of strings at the beginning. I narrowed it down to preference based on each guitar. I use D’Addario Phospher Bronze Light,
Here’s what I currently have in my collection of strings.
