Well put, and ditto. A song of his that always reminds me of the time around when JFK was killed was "24 Hours From Tulsa." I think his last big hit was "She's A Heartbreaker." Another good one was "Last Chance To Turn Around." What a great and distinctive voice.
Even when I was listening to his singing on a small transistor radio or an AM car radio, he sounded to me like he was singing live.