"I get a physical tingling sensation. It's beyond my control, an impulsive feeling where I have to sit and wait for it," Billie Marten says about that moment before a wave of inspiration strikes. The problem, Marten told me, is that it's been a while since she's written anything.

But as we soon realized, Marten has been writing a lot: she pulled out her Notes app and scrolled through all the freewriting and thoughts she's written over the past year. "Look at this," she says. "I haven't written anything, but I've written something every day." Good writers know that pen to paper is only a small part of the writing process. And as you'll hear, when Marten writes songs, she loves to write diagonally.

Billie Marten's latest album is called Dog Eared.