They were cousins, so we dud 90 minutes with both of them.
They both liked Kansas so they wanted to learn these two.
They did ok, but never nailed the riffs exactly. Bur, they had fun with it.

Good that they had fun.

On guitar.
Piano, not so much. In my mid 20s, I taught both guitar & piano at a local store about a mile from my house.
By then, I has been playing piano around 20 years. When the kids would struggle with something I'm battling an urge to scream "Come on! This is easy!" I had forgotten what it was like for piano to be hard.
On guitar, I was only playing 5 years. I remembered my fingertips hurting. I remembered that, as much as I understood music & chord construction, that my fingers would automatically go where I needed them to go. I remember that single notes were harder than I figured.
I had way more empathy as a guitar teacher than as a piano teacher.

...as I call it, of Nashville tuning. This involves double-tracking two acoustic guitars. Here's the rundown.

That's interesting.