Brenda Nelson-Strauss at Indiana University just gave Charles A. Asbury – 4 Banjo Songs an excellent review that acknowledges CPS1’s contribution to its sonic quality. The review appears in “Black Grooves,” a music review site on the Archives of African American Music & Culture (AAAMC) website. AAAMC is the number one hit on Google searches for “African American music” and a major destination for scholars and students of black music.
http://blackgrooves.org/charles-a-asbury-4-banjo-songs-1891-1897/