Gekko Sabou (月光茶房 "moon-light-tea-chamber", a wonderful name) is not a jazz cafe/bar in the traditional sense. I tend to have a rather broad view of what "jazz" is though, so any place that advertises itself as featuring "jazz, free music, improvised music, tribal & trad music, voice and singing" is going to be right up my alley. It is a small place with only ten seats at a long counter. It has been through several changes in design and outlook since it opened and now functions as a coffee and tea specialty cafe. The menu for both is extensive, but you have to read Japanese.
It' s sleek and dark with a really nice collection of tea and coffee sets above the bar, and framed record sleeves all along the back wall. Owner Harada-san and a regular customer were in the process of changing the albums when I was there, with the new batch consisting entirely of French records. I didn't catch the name of what was playing at the time but it was some really minimal, improvised electronic music which fit the atmosphere perfectly.
This is a quiet place, good for either an afternoon tea or a beer at night.
Station: Omotesando - Hanzomon/Ginza Lines
Distance from station: 6-9