What are some ways to adjust the tone of a folk guitar. Please enlighten me!

The most significant tonal change on the lower end comes from the strings. Overall brass strings are crisp and bright, while phosphor bronze strings are warm. It's worth noting that phosphor bronze has a higher tension and may feel a bit harder, but for harder "driving" tops such as adirondack, stika, etc. phosphor bronze is more likely to give the instrument a thicker ****ing sound.

Of course, the tone of different brands of strings varies greatly, for example, EXP is the most orthodox or middle-of-the-road, Martin is more extroverted - a sense of power, elixir cold, neat - this product has the reputation of the savior of the plywood! But instead of inhibiting the individualized tone of high-end instruments, they are very dominant strings and sell for quite a bit more, around $14.

In addition to changing the strings, if you want to change the tone, you can consider changing the string pillow, usually mammoth fossil > ivory > cow bone > artificial tooth (bone) > plastic. Then there are string pegs, bone, ebony, rosewood, etc., which more or less have some effect on the tone.

Veneer instruments, especially spruce tops other than Englemann spruce have the so-called "open sound" concept, and a good instrument definitely sounds better the more you play it...