Sorry, typo in post above, should be AJF not AJG.

For example, the chapter in question discusses the work and attitudes of John Lomax in some detail, pointing out flaws in his research methods and discussing his relationship with Leadbelly.

It seems plain enough that Odum and Lomax had different approaches to the music of African Americans of the deep south, and probably to those people themselves, and that is what the chapter explicates. However, for Miller, each of the two different approaches has its downside. Amen to that.