I get a week off work in December, and I'm planning to go to Osaka. (Medical stuff to attend to.) Being in a place where jazz is performed in kind of a one-week-a-year thing for me.
I expect to have time in the evenings to get to a show or two, and I know Osaka has jazz. (The record store scene is insane. https://groovenutrecords.wordpress.com/2018/03/23/osaka-record-map-2018/) As I recall, the Royal Horse was good, with international acts. Bunk Johnson (can't lose with a name like that) was another place I either saw or visited. Lots of the websites are tough to penetrate for people who don't read Japanese. "Rug Time" lists, among many pages of Japanese:
橋本 裕(g)、 橋本 有津子(org)、 Akira Tana(vo)
COMODO seems to feature vocal acts: not "my thing".
Anyone with knowledge of Osaka?