Accompaniment: Little Walter, The Blues World Of Little Walter
The songs of the artists that we study tend to be from THEIR albums. In other words, albums that focus on their vocal tunes (where they play fills and solos) and instrumentals. This means that we're only studying how to solo and most players (I sure was this way) don't really know how to play accompaniment (playing at the same time, in a supportive roll, under the vocalist or soloist) due to the fact that they've never copied someone doing it.
With this in mind, since I'm on Little Walter, pickup "The Blues World Of Little Walter" where it includes both his early works (1950) as well as some backing he did for other artists. There's also some tracks with Sunnyland Slim that have no harp that you can practice your accompaniment playing with.