You won't get a didactic analysis of surf music from Donavon Frankenreiter, one of the top musician/surfers in all the land, but he certainly has some wisdom on the subject.
"To me, it's all surf music." Kinda makes sense. You're not going to stay on the board if your head is cluttered with thoughts about the wave, and you're not going to write a great song if you're obsessing over genre. And as he points out, the only reason we think of the Beach Boys as surf music is because they sang about surfing.
The music Donavon makes celebrates life and liberty, at times mellow, and often funky. His musical mentor is Jack Johnson, who produced Donavon's 2004 debut album and appears on his most popular song, "Free."