Oh boy. Music is complicated, particularly for kids, and Tim only started learning it properly in college. He breathes out, long and patient, blowing the sweep of his bangs from his face. He keeps forgetting to cut his hair.

If they're gonna do this, they're gonna do it right. He hunkers down in the sand and draws five parallel lines with his finger.

"This is what we call the staff. This is where the notes get written. It's like...the page, and the notes are the letters. When you put enough of them together, you get a tune. If you put enough tunes together, you get a song."