The outlaw-era voice made a lasting chart footprint with songs that outlived their peak years. David Allan Coe circa 1970. Michael Ochs Archives/Getty Images David Allan Coe’s place in country music was never especially tidy. That was part of the point. Coe, who died April 29 at age 86, built a career that ran alongside the Nashville mainstream without ever settling inside it. He emerged in the 1970s as country’s outlaw movement reshaped the format, sharing the independent streak of Willie Nelson, Waylon Jennings and others, while often pushing further into rougher, more confrontational territory. His Billboard chart history reflects that tension. Coe charted 30 titles on Hot Country Songs from 1974 through 1987. He never reached No. 1 as a recording artist, but earned three top 10s: “Mona Lisa Lost Her Smile,” which became his highest-peaking hit, reaching No. 2 in 1984; “The Ride,” which hit No. 4 in 1983; and “You Never Even Called Me by My Name,” which rose to No.…