Yes.... but they do what they do, pretty well. To trace the spirituals, for instance.... I am not sure they could do it, the way titles and tunes shift across time and genre's. When I try to do it my head spins. I'd have had to have kept track, song by song, as I discovered (heard) the connections, and instead I just learned and enjoyed the songs.... any single song sprouts its own wildly-tentacled tree, and crosses other branches, and autografts, and re-brances...... I could not go back now and reconstruct it for any individual song, and I am not sure I could have done it as I went.

[shrug] It's for having and doing, not studying, really-- that subgenre anyhow.

~S~