Here are some specific differences between 39-inch and 41-inch acoustic guitars:
* Overall size: The 41-inch guitar is about 2 inches longer than the 39-inch guitar. This difference is mostly in the body of the guitar, with the neck being about the same length on both guitars.
* Sound: The 41-inch guitar produces a slightly louder and fuller sound than the 39-inch guitar. This is because the larger body of the guitar provides more resonance and sustain.
* Playability: The 41-inch guitar may be easier to play for some people, as it may have a wider neck and more space between the strings. This can be especially helpful for people with large hands or who are new to playing the guitar.
Ultimately, the best way to decide which size guitar is right for you is to try out both sizes and see which one feels more comfortable and sounds better to you.