Because of the instruments they use, folk music just comes naturally. In fact, John & Connie picked up most of their instruments after watching and hearing other musicians. Although not experts on any of them, they play fairly proficiently (that means they're pretty good). People keep asking them back, anyway, and they clap instead of throwing tomatoes, which is a really good thing!
Folk style tends to permeate most of what they play, but some of the specific examples would be: old time traditional American, Celtic music from the British Isles, 60's & 70's folk, singer/songwriter stuff like John Denver, James Taylor, Gordon Lightfoot, Harry Chapin, & the likes, and sometimes a good classical piece or old hymn with dulcimers & such. Even the songs John writes have a folk flare.
Some of the popular places for their folk music are house concerts (public & private), coffee houses, community festivals, local concert series, and quiet background music.
Here's what some real folks say about 'em -
". . .a superb duo you have to hear to appreciate. . . very articulate. . .the most relaxing music from two people we have ever heard."
Dave & Joan Siekierski, Bagels & More, Beloit WI
"Salty Strings offer a variety of musical sounds to sooth you - inspirational music bound to put your mind at ease"
Katy Helmer, Summer Concert Coordinator, Brodhead WI
"We are very appreciative of their participation in our annual Heritage Days. . . very enjoyable music with a variety of unique instruments. . . . they have the ability to get the crowds to interact."
Sheri Disrud, President, Friends of Beckman Mill, Beloit