Glen Campbell exits the spotlight on a high note

Swan song of the rhinestone cowboy

Glen Campbell’s road to stardom - “By the Time I Get to Phoenix,’’ “Wichita Lineman,’’ “Rhinestone Cowboy’’ - is paved with numerous overlooked gems. With more than 50 studio albums, his discography is daunting, and he’s been anthologized to the hilt. Here are a few good starting points for lesser-known material.