B1, 3-23-5 Takadanobaba, Shinjuku-Ku
Hot House is the world's smallest jazz club! Maybe 8 or 10 customers max in this place. Make a reservation, get there early, and be ready for a really intimate show. The owner Aki-san behind the counter will provide little snacks (and some stern warnings to be quiet..don't get on her bad side..) This is an only in Japan experience, you have to go at least once.
Station: Takadanobaba - JR Yamanote, Tozai, Seibu-Shinjuku Lines