So, my Black Beauty cross had ripe fruit by today. I them (there were two). One was riper than the other. The ripest one had a sweet taste to it, in a certain way (not super sweet, but definitely sweet). The less ripe one tasted the same, except with some of that tomatine-type taste (or that's what I call it) that I've tasted prominently in Coyote and Matt's Wild Cherry.
Sweetie (a cherry tomato) is the only likely candidate that comes to mind for this cross, of all the tomatoes I grew in 2017. I think Sweetie was the only red cherry I grew without anthocyanin fruit, other than some Husky Cherry Red growouts (which probably wouldn't have produced these results, and probably would have tasted quite a bit different). It should be noted that Black Beauty had surprisingly large fruit in 2017, and Sweetie had tiny fruit.
If you're interested in F2 seeds from this cross, feel free to let me know. I prefer the cross to Sweetie, but I prefer the original Black Beauty to the cross.
Here are pictures I took today of the cross. They look pink in the picture, but they looked red in person. Black Beauty in 2016 was very pink in person. The ripest one split a little while after I harvested it.