The duo's music can go all over the map but is often very slice of life and very funny. It's a folksy kind of folk music and is largely kid-friendly.
"We've got some songs that talk about kissing," Grimwood explained. "There's nothing you couldn't let your kids hear. It's just that it's about kissing, and what kid wants to hear about that?"
Grimwood is fairly confident there aren't many that would. Along with writing music mostly aimed at typical, good-humored grownups, the band has written songs specifically for children for decades.
Grimwood said they got into it accidentally. In 1977, a teacher asked the two to come play at her school as part of a lesson on where music comes from.
"She wanted to show her students that music didn't just come from the radio or from the television."
They didn't know any children's songs. They couldn't even think of any to make up.
"So we played some Beatles music," he said. "We played some folk music. We played some blues and a little rock n' roll -- stuff like that."
The kids loved it, and the pair loved playing for kids, so slowly, songs and shows for kids became part of the band's business.
The trick to writing songs for kids isn't really much of a trick, he said.
"From the beginning, we've always played real music for the kids. We played right at them. We never talked down."
They'd have heard about it otherwise. Kids, Grimwood added, are great music critics.
"If kids don't love a song, they'll say what's on their mind. They don't know how to be polite yet. They just say what comes to their minds."
Eventually some of the kids' songs made it into the regular shows, and they evolved a kind of broader family show.
Grimwood said, "So now we've got the coolest thing: We have people who bring their kids to our show and people who bring their parents. We're talking three generations all in the same place."
It's a very exciting thing to see, he promised.
One day, they hope to show the people of Idaho.
Reach Bill Lynch at ly...@wvgazette.com or 304-348-5195.