Listen but Don't Ask Question: Hawaiian Slack Key Guitar across the Transpacific.

But with the introduction of radio and records, Lasser argues, Americans became "music consumers" rather than "music makers" as they purchased sentimental songs, songs about cuddling, and, still later, music about missing loved ones away at war. This made the slack key guitar, during its renaissance in the 1970s, both "impure" and, ultimately, native, and its working-class performers not commercial artists but authentic performers who did not sell their music. [Extracted from the article]