http://ayprecovery.org/blog-25-principles/ I was given a dulcimer, and it has 4 strings, with 2 of them very close together, while the other 2 are spaced wider apart. It is easy to play, but I can’t seem to learn because I’m NOT musically inclined by nature. I mention this one because it is mostly an Ozarkian instrument, not well known most places, and has a beautiful sound. On the Beverly Hillbillies TV show some years back, Granny played one on the show for one or two episodes. Mine was hand-made in Branson, Missouri. A friend of mine gave one to me, that she had made herself, and played for the tourists shopping at the mall there.