I thought this documentary missed an opportunity to present a perspective from African American classical and jazz pianists and musicologists. Steven Mayer and Joseph Horowitz pontificating about Black pianists was white-mansplaining. Instead of covering Dvorak, they could have covered Samuel Coleridge-Taylor who composed classical music based on American Negro spirituals, as well as a number of other African American composers and pianists. I think they tailored the documentary to Mayer’s repertoire more than anything else. This documentary should be called “Tribute to Steven Mayer”.
1. The documentary is tailored to Mayer's repertoire but his repertoire is very broad in this area. He played pieces by most of the important jazz pianists up to Tatum.
2. They chose Dvorak because they wanted an example of a very great while classical composer who adapted ideas from black jazz pianists. The use of his most famous Humoresque was a perfect example to illustrate that.
3. My guess is they didn't have jazz pianists talk because many of them, as Mayer said, look down on playing transcriptions of jazz pianists' improvisations.
4. I do agree that the video was, at least some extent, a promotion for Steven Mayer but many pianists have to do some promoting for the sake of their career.