btw, Glen borrowed & played Wrecking Crew’s Carol Kaye’s 6-string bass on his “Witchita Lineman” solo.
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The story is Campbell called Jimmy Webb to do a song, but he didn’t have enough time to finish it, so he sent it to the studio as is, still needing a verse. Webb didn’t hear anything for a while, but the next time he saw Campbell he said I guess you didn’t record the song. Campbell said, oh no, we recorded it. We just put a bass solo where the missing verse was supposed to be.