‘Galveston’ (1969)

Mr. Campbell’s voice sails with grace over the word “Galveston,” a crucial elongation since the city’s name needs to evoke a significant back story. It’s the tale of a scared soldier at war who longs both for home and for a lover he left behind. Mr. Webb’s melody requires whoever sings it to fly. Mr. Campbell soars.

‘Less of Me’ (1968)

In 1968, Mr. Campbell recorded a smart duets album with Bobbie Gentry that went No. 1 on the country charts. The set opened with a song Mr. Campbell wrote, “Less of Me,” that caught his generous spirit. It’s a prayer to set aside ego in favor of service, echoed by the stars’ seamless harmonies.

‘It’s a Sin (When You Love Somebody)’ (1974)

The winning team of Mr. Campbell and Mr. Webb recorded “Reunion” in 1974, an album culminating in a song that showed off the singer’s R&B side. Along with his flair for country and pop, “Sin” added a little bit of soul.

‘Rhinestone Cowboy’ (1975)

The lyrics to Larry Weiss’s song, about a veteran of fame encased in tinsel, suited the phase of Glen Campbell’s career when he recorded it. The single went No. 1 in 1975, returning the singer to a prominence he last enjoyed in the late ’60s. Mr. Campbell’s flexible and resilient vocals capture both a “cowboy’s” wistful look back at his legacy and his determination to continue the ride.