When my youngest son was a baby, he suffered for a time from colic. The only thing that would get him to sleep was a mixed tape of JJ Cale songs, played over and over. One day, he will experience a sense of deja vu about Cale. My own favourites are 'Little Fishes', a song that began life as an Australian sea shanty and Michael Doucet's 'Chanson Pour Ezra'.