Here is what is written in the Producer's Notes:
"The vision of this set was to present jazz performances from the Black & White label. The challenge that confronted us was what to include since many sides fall in a grey area between pop vocals backed by jazz musicians (in a strictly accompaniment role) and those sessions in a rhythm and blues context. So, for example, one can argue that certain Lena Horne or Jack McVea titles should have been included here as well as sides by Bob Hayward, Maggie Hathaway, The Robinson Brothers and others. We hope you understand our dilemma and enjoy what has become a part of this set."