Music biographies mesmerized me when I was a kid. Whether it was Glenn Miller or Elvis Presley, it was always the same fascinating formula: talent and tenacity leading to the precipice of success, with the artist always searching for that one elusive element to define his signature sound, to breakthrough. With Miller it was the addition of trombones. The proceedings always put me on the edge of my seat and the breakthroughs set me reeling. I guess it was in my blood.

It persists. The other night I watched two great documentary-style biopics on TV, one on Johnny Cash, another on Willie Nelson. Willie, as many of his fans may not realize, was actually a Nashville songwriter penning such classics as “Crazy,” which Patsy Cline etched into the music lexicon. Despite his preeminent status as a writer, Willie couldn’t get arrested as an artist in Music City. His quirky phrasing was way too off-beat for the 60s sound, which was infused with sweet strings and pop arrangements.