The much-beloved nucleus of the Tokyo indie music scene, Ruby Room is a little box of a venue that punches well above its size. Though the venue only holds around 150 people, it's drawn all sorts of top-notch acts including Basement Jaxx, Hernan Cattaneo and Belle & Sebastian to play impromptu sets.
Their weekly open mic night on Tuesdays is an institution and where a good chunk of local musicians get their start (and find their future bandmates). Depending on the night of the week, the vibe can go from chill acoustic to cluby, but you can be sure to catch something special whenever you stop by.