John Boutté felt the unmistakable power of music early on, “I remember when I was 8 years old begging my mom when she was at the stove, one baby on her arm, one pulling on this side of her dress, me pulling at the other side, and she was stirring the pot with her other hand, and I was telling her I wanted this cornet and she was like, ‘Aw, I ain’t got no cornet,’ and I just walked away crushed. . .but the next morning she had picked up this cornet from next door and made a little denim satche...