brown rice and rye?

Here is a Japanese baker doing brown rice and rye pan loaves.

https://www.youtube.com/watch?v=cOK3nS4t7_Y

See 23:32 for the wet dough going into pans and 38:14ff when they come out with the nice top crust of random cracks.

Here is a recipe

https://www.breadexperience.com/sourdough-rye-and-rice-bread/

I wonder how it tastes!