Some general guidelines for how often guitar strings need to be changed.
The Recording Guitarist: Should You Change Your Electric's Strings Before Tracking? - Premier Guitar
How Often Should You Change Your Strings?
How to Re-String a Guitar
How Often Should You Change Your Strings?
How Often Should You Change Guitar Strings? (Complete Guide)
How Often To Change Guitar Strings? Hint: Not Every 3 Months - Music Industry How To
How Often Should You Change Your Guitar Strings? (Hint: It's Not When They Break)
How Often Should You Change Your Guitar Strings?
The Best Way to Change Violin Strings [9 Simple Steps] - Violinspiration