It's fascinating to hear him work here with a very specific and small set of albums -- seven, to be exact, all of which were released during 1971-1973 on a small but substantial label run by pianist and producer Gene Russell. Black Jazz Signature trails Gilles Peterson's Black Jazz Radio and DJ Muro's Diggin' Black Jazz as a complement to Snow Dog's thorough Black Jazz reissue series, but there's only one selection here -- Rudolph Johnson's "The Highest Pleasure" -- that appears on those previous mixes.