Whatever subject you are interested in, you can train and teach yourself, once you get the basics down. I took some guitar lessons from Joe Negri, in the back of his parents music store in Carmichaels Pennsylvania when I was a child. My parents bought me an electric guitar and an amplifier. Joe taught me the notes and some chords. He said that you can play anything anywhere on the guitar. It is true. Then he said he could not be my guitar teacher anymore because he got a job playing the guitar on Mr. Roger's Neighborhood on TV, as the Handyman who could play the guitar. After, I turned 50, I asked each of my family members questions about music, since they each had learned how to read music. Then I taught myself how to play the banjo, the mandolin, the dulcimer, and of course the guitar.
The first part of a song is called, the statement and the second part of the song is called, the variation. Many new musicians learn how to play the statement very easily, but then the variation requires a little higher level of skill. The variation is the part of the song that gives the listener the most satisfaction. Some musicians will alter the pattern of the statement and the variations for a pleasant sound.
The Mountain Dulcimer has the two standard shapes, which are the "Standard Tear Drop," which you see me playing, back in the day, then, and now. The ones in the photos are called "The Hour Glass" style. To obtain the continuous ringing sound, you slide the wooden stick through the frets and use a guitar style pick.
I am an amateur musician. The difference between an amateur and a professional are a amateur does not receive money for his work and a professional receives money. I have only received money as an educator and a security officer, not as a musician or a martial artist.
It sounds like the Civil War era so much, that you are immediately transported back to that time period, when you listen to the sweet sound of dulcimer music.