With great soundproofing, even a beginner acoustic guitar can sound good on your recordings. I want to talk specifically about a few things you can do to improve soundproofing in your home studio, but if you’d like a bit more information on acoustic treatment, check out this Flypaper article on acoustic diffusers.
Let’s use my own childhood as an example. I heard a few too many nursery rhymes from my crib, like “Mary Had a Little Lamb” and “Merrily We Roll Along.” Songs that focus on the 1st, 2nd, and 3rd scale degrees, small intervalic jumps, feel more familiar, more comfortable, and more nostalgic, to me at least.